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Ann N.
$30/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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⭐⭐⭐⭐⭐ "𝘞𝘦 𝘸𝘦𝘳𝘦 𝘷𝘦𝘳𝘺 𝘩𝘢𝘱𝘱𝘺 𝘸𝘪𝘵𝘩 𝘵𝘩𝘦 𝘨𝘳𝘦𝘢𝘵 𝘸𝘰𝘳𝘬 𝘲𝘶𝘢𝘭𝘪𝘵𝘺 𝘈𝘯𝘯 𝘱𝘳𝘰𝘷𝘪𝘥𝘦𝘥 𝘢𝘯𝘥 𝘵𝘩𝘦 𝘕𝘢𝘵𝘪𝘧𝘦 𝘔𝘰𝘣𝘪𝘭𝘦 𝘵𝘦𝘢𝘮. 𝘐𝘧 𝘸𝘦 𝘳𝘦𝘲𝘶𝘪𝘳𝘦 𝘢𝘯𝘺 𝘸𝘰𝘳𝘬 𝘢𝘨𝘢𝘪𝘯, 𝘸𝘦 𝘸𝘪𝘭𝘭 𝘥𝘦𝘧𝘪𝘯𝘪𝘵𝘦𝘭𝘺 𝘶𝘴𝘦 𝘵𝘩𝘦𝘮." 🤝 𝐈 𝐜𝐨𝐝𝐞, 𝐚𝐝𝐯𝐢𝐬𝐞, 𝐚𝐧𝐝 𝐜𝐚𝐫𝐞 𝐟𝐨𝐫 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐥𝐢𝐤𝐞 𝐢𝐭’𝐬 𝐦𝐢𝐧𝐞 𝐟𝐫𝐨𝐦 𝐭𝐡𝐞 𝐬𝐭𝐚𝐫𝐭. 👋 Hi! I’m Ann an Android & iOS mobile app developer Swift Kotlin mobile app development expert with 8+ years of experience building high-performance iOS apps, Android apps, and scalable cross-platform solutions with React Native. 🚀 Android & iOS Mobile App Developer | Swift • Kotlin • React Native | Mobile App Development As a Top Rated Plus Android & iOS mobile app developer Swift Kotlin mobile app development specialist on Upwork with 30+ five-star reviews and a 100% Job Success Score, I’ve helped 60+ companies and startups transform ideas into scalable, future-proof mobile products. Whether you need a native iOS app with Swift, a native Android app with Kotlin, or a cross-platform solution, I deliver Android & iOS mobile app development using Swift and Kotlin with precision, creativity, and enterprise-grade quality. From e-commerce, fitness, and healthcare to fintech, streaming, logistics, and wearable apps, my experience as an Android & iOS mobile app developer Swift Kotlin mobile app development professional spans 15+ industries and 50+ published apps. ✅ Why Partner with Me as Your Android & iOS Mobile App Developer: 8+ years of hands-on Android & iOS mobile app development using Swift, Kotlin, React Native 50+ successful iOS and Android apps delivered in Fitness Mobile App (Coaches, Gyms & AI Meal Plans) 10+ successful iOS and Android apps delivered in Fintech industry A strong mobile app development team of 50+ experts 100% Job Success Score and consistent 5-star reviews on Upwork Streaming, TV apps GPS and Map-based apps ( GPS trackers, MapBox, Google Maps integration) AI Mobile App Development MVP App Development for Wellness and Hospitality Platform Dating Mobile App Social Media App Development Mental Health Social Platform Enhance an Android, IOS mobile apps Figma designer. UX/UI designer Real Estate mobile apps Full-cycle Android & iOS mobile app development — from idea to App Store & Google Play launch AI App Expert specializing in Swift Kotlin mobile app development, on-device ML, real-time image & text processing, and LLM API integrations 🔧 Services I Provide as an Android & iOS Mobile App Developer (Swift & Kotlin): Native iOS app development with Swift & SwiftUI Native Android app development with Kotlin & Jetpack Compose Android & iOS mobile app development using Swift Kotlin architecture React Native app development for cross-platform solutions UI/UX design for iOS and Android apps (Figma, Sketch, Adobe XD) Secure API integrations & cloud services (AWS, Google Cloud) Scalable backend connections & microservices Wearable app development (Apple Watch, Wear OS, Bluetooth) Performance optimization & offline-first mobile app development 🎯 Industries I Specialize In as an Android & iOS Mobile App Developer (Swift Kotlin): 📦 E-Commerce | 🍔 Food & Drink | 📚 Education 💪 Health & Fitness | 💘 Dating | 🎬 Entertainment & Streaming 💼 Finance & Banking | 🌍 Travel | 📱 SaaS Platforms ⌚ Wearables & IoT | 🚚 Logistics & Booking Apps All powered by Android & iOS mobile app development with Swift and Kotlin. 🚀 Advanced Features I Build with Swift & Kotlin Mobile App Development: ✔️ Social login (Google, Apple, LinkedIn) ✔️ Real-time chat, WebRTC video calls & push notifications ✔️ Offline mode & smart data synchronization ✔️ GPS, geolocation, Bluetooth & geofencing ✔️ ARKit & advanced AR features ✔️ Firebase & cloud integrations ✔️ Monetization (AdMob, Meta Ads) ✔️ Voice assistants (Siri, Google Assistant, Alexa) ✔️ TV apps (tvOS, Android TV) & wearable tech (Garmin, Monkey-C) 💬 Why Choose Me as Your Android & iOS Mobile App Developer (Swift Kotlin): I bring deep expertise in Android & iOS mobile app development using Swift and Kotlin, focusing on clean architecture, scalability, performance, and business impact. Whether you’re a startup building an MVP or an enterprise scaling globally, I’m the Android & iOS mobile app developer Swift Kotlin mobile app development expert who can turn your vision into a successful product. 📱 Let’s connect and build a powerful Android & iOS mobile app with Swift and Kotlin. 🚀 Your trusted Android & iOS mobile app developer Swift Kotlin mobile app development partner is just one click away. UPD: 05.06.2026
Ann N. has worked .
Natife Mobile
Associated with
Natife Mobile
$700K+
earned
Eugene Z.
$30/hr
100% Job Success
$90K+ earned
Available now
Offers consultations
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🏆 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 (𝐓𝐨𝐩 𝟏𝟎%) 🏆 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞 | 𝐢𝐎𝐒 & 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐒𝐰𝐢𝐟𝐭 | iOS App Developer Swift | 𝐊𝐨𝐭𝐥𝐢𝐧 | Android App Developer Kotlin | 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 | 𝟖+ 𝐘𝐞𝐚𝐫𝐬 I’m a Mobile App Developer focused on building scalable, secure, and production-ready mobile products for iOS and Android ecosystems. My work combines mobile app development, mobile app design, clean architecture, API integrations, Firebase workflows, authentication, analytics, payments, push notifications, and long-term product support. I focus not only on features, but also on performance, stability, maintainability, and business growth. As an iOS App Developer Swift specialist, I deliver native Apple ecosystem solutions through Swift, ios development, ios mobile app development, ios swift engineering, App Store readiness, watchos, apple watch, watchkit, and smart watch integrations. My iOS experience covers MVPs, product recovery, scalable production systems, enterprise apps, and secure ios applications. As an iOS App Developer Swift expert, I focus on polished UI, reliable architecture, optimized performance, and maintainable code. As an Android App Developer Kotlin specialist, I build native Android apps using Kotlin, android app development, android development, modular architecture, Firebase, APIs, payments, analytics, authentication, and production-ready release workflows. My Android App Developer Kotlin work includes scalable android app, android app developer, android application, and complex mobile ecosystems designed for long-term growth. As an Android App Developer Kotlin expert, I focus on clean architecture, stable performance, security, and maintainable Android products. I work as an iOS App Developer Swift and Android App Developer Kotlin for businesses that need reliable native mobile development, strong technical decisions, and product-focused delivery. This native expertise helps create secure ios and android solutions for fintech, e-commerce, booking platforms, fitness, health, taxi, transportation, delivery, dating apps, social media app, live streaming app, video streaming systems, AI-based mobile systems, SaaS, business apps, wearables, and IoT. When product goals require faster launch or flexible delivery, I also support react native mobile, react native developer, react native expert, react native app, react developer, react js, react redux, react node, react native firebase, cross platform mobile development, cross platform mobile, hybrid app, hybrid app developer, flutter, flutter developer, flutter dart, flutter firebase, and flutter app workflows. ⭐️⭐️⭐️⭐️⭐️ “Reliable mobile app developer delivering stable releases. From MVP recovery to scalable production systems.” 🎯 What I bring: ✔️ 8+ years as a mobile app developer across full mobile app development lifecycles. ✔️ Strong iOS App Developer Swift background for native ios app, ios developer, senior ios developer, ios app developer, and scalable swift ios development. ✔️ Strong Android App Developer Kotlin background for native android developer work, kotlin developer workflows, android app development, and enterprise Android delivery. ✔️ Experience with API integrations, Firebase, authentication, analytics, payments, push notifications, backend coordination, wordpress, shopify, and mobile app marketing. ✔️ Product collaboration with mobile app designer, mobile app developers, product teams, and business stakeholders. 📱 Mobile Applications I Develop: • Taxi & Transportation Apps • Booking platforms • Fitness & Health Apps • AI-based mobile systems • Security-focused ios and android solutions • Fintech & Payments Apps • E-commerce apps connected with wordpress and shopify • Business & SaaS applications • Social media app, live streaming app, and video streaming platforms • Wearables & IoT systems with watchos, apple watch, watchkit, and smart watch • Delivery and Dating Apps 🚀 Technologies & Skills I architect scalable ecosystems combining native and cross-platform engineering. iOS App Developer Swift products are powered by Swift, ios developer swift workflows, ios development, ios swift delivery, App Store readiness, and iOS App Developer Swift expertise. Android App Developer Kotlin products are powered by Kotlin, android application architecture, Firebase, API connectivity, and Android App Developer Kotlin expertise. I also deliver react native, flutter, hybrid app, and cross platform mobile ecosystems. As an iOS App Developer Swift professional, I help teams build polished iOS applications that are easy to scale. With both iOS App Developer Swift and Android App Developer Kotlin expertise, I support full-cycle mobile app development. iOS App Developer Swift and Android App Developer Kotlin delivery stays production-focused. 📩 Ping me. Let’s build something great.
Eugene Z. has worked .
Natife Mobile
Associated with
Natife Mobile
$700K+
earned
Ishankumar M.
$15/hr
100% Job Success
$100K+ earned
Available now
Offers consultations
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➝ Experience as a Mobile App Developer, building high-scale Mobile Applications through Mobile App Development that reached 100M+ downloads, 3M+ monthly active users, and 10M+ paid subscribers. ➝ As an iOS Developer and Flutter Mobile App Development specialist, I've helped build revenue-generating Mobile Applications supporting digital platforms with 𝗻𝗶𝗻𝗲-𝗳𝗶𝗴𝘂𝗿𝗲 𝗮𝗻𝗻𝘂𝗮𝗹 𝗿𝗲𝘃𝗲𝗻𝘂𝗲 through scalable subscription, AI-powered, and marketplace business models. ➝ 80+ Mobile App Development Projects successfully delivered across Flutter App Development, Flutter Mobile App Development, iOS App Development, Android App Development, AI App Development, Hybrid App Development, and Cross-Platform Mobile App Development. ➝ Trusted by Clients Across 40+ Countries, delivering Mobile App Development solutions for startups, growing businesses, and enterprise clients. 🤔 𝐀𝐑𝐄 𝐘𝐎𝐔: - Looking for a Mobile App Developer to build a mobile app for iOS, Android, or Flutter? - Searching for an iOS Developer to build a high-quality iPhone and iPad application? - Interested in AI App Development to add AI-powered features into your mobile application? - A Startup, Founder, or Business looking to build an MVP Mobile App? - Need end-to-end Mobile App Development service from design to publishing a Mobile App on the App Store/Play Store? - Looking to integrate new features into your existing Mobile App? 𝗛𝗶! 𝗜’𝗺 𝗜𝘀𝗵𝗮𝗻𝗸𝘂𝗺𝗮𝗿 𝗠𝗼𝗻𝗽𝗮𝗿𝗮, a Senior Mobile App Developer with 5+ years of experience in creating high-performance and user-friendly mobile apps for iOS, Android, and Flutter, specializing in Mobile App Development, AI App Development, and MVP Development. 𝗠𝗬 𝗞𝗡𝗢𝗪𝗟𝗘𝗗𝗚𝗘 & 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘: → Cross-Platform Mobile App Development with Flutter for iOS and Android. → Native iOS Development with Swift and iOS SDK, building fast, reliable apps for iPhone and iPad. → Native Android Development with Kotlin and Android SDK, delivering secure, scalable apps for Android devices. → Backend Development with Node.js, Express.js, AWS, MySQL, MongoDB, PostgreSQL, Firebase. → Proficient in API Integration with RESTful APIs, GraphQL & third-party SDKs. → Expertise in Firebase, Firestore, MongoDB, and database management for mobile apps. → Skilled in UI/UX Design using Figma & Adobe XD. → Deep knowledge of architectural patterns like MVC, MVP & MVVM. 𝗚𝗹𝗶𝗺𝗽𝘀𝗲𝘀 𝗼𝗳 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜’𝘃𝗲 𝗪𝗼𝗿𝗸𝗲𝗱 𝗜𝗻: ✔ AI-Powered Mobile App Development ✔ MVP Mobile App Development for business/startups ✔ Health & Fitness Mobile App for iOS/Android ✔ Meditation & Wellness Mobile Application with AI Integration ✔ Travel & Ticket Booking Mobile App ✔ Social Media & Dating App Development ✔ Food Delivery App with Real-Time Order Tracking ✔ Loyalty & Rewards Mobile App with Coupons & Gift Cards ✔ Real-Time Chat & Messaging Mobile App ✔ Real-Time Audio & Video Calling Mobile App ✔ Music & Audio Streaming Mobile App for Android/iOS ✔ Sports & Entertainment Mobile App Development ✔ E-Learning/Edtech Mobile App ✔ Real Estate Mobile App with Property Listing ✔ Finance & Budget Management App ✔ Marketplace & E-Commerce Mobile App 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? 💡 Problem-Solving Developer: I turn your ideas into smart, easy-to-use mobile apps. 📞 Clear & Friendly Communication: Fast updates and open collaboration. ⏰ On-Time App Delivery: I deliver your mobile app on schedule, every time. 🎨 User-Friendly App Design: Simple and engaging mobile app design that user love. 🚀 Scalable Mobile Solutions: Apps built to grow with your business. 🔒 Secure App Development: Fast and reliable code, built with industry standards. 🤝 Free Maintenance & Support: 12 months of free support after launch. ✅ 100% Client Satisfaction: User-friendly mobile applications that clients love. 🏷️Tags: Mobile App Development | Mobile App Design | Mobile App Designer | Mobile App Developer | Mobile Application | Mobile Application Development | UI/UX Design | App Developer | iOS | iOS Developer | iOS Development | iOS App Development | iOS App Developer | iPhone App Developer | Android | Android Developer | Android App Developer | Android App Development | Flutter Developer | Flutter App Developer | Flutter App Development | Cross-Platform App Development | Cross-Platform Mobile App Developer | Hybrid App Developer | Hybrid App Development | Hybrid Mobile App Development | Native App Development | Top rated Mobile App Developer | Hire Mobile App Developer | Best Mobile App Developer | React Native | Flutter | Dart | Swift | Kotlin | AI Mobile App Development | AI App Development | Firebase Integration | Firebase Realtime Database | Firestore Database | API Integration | Google Maps API | Geolocation Services | Push Notification | User Authentication | User Profile Creation | Payment Gateway Integration | In-App Purchases | App Performance Optimization
Ishankumar M. has worked .
Anna S.
$75/hr
100% Job Success
Available now
Offers consultations
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👉 BOOK A DIAGNOSTIC CONSULTATION TO REVIEW YOUR MOBILE APP 🔴 If users open your mobile app once and never come back, it’s rarely a UI problem. It’s a first-session strategy problem. I fix onboarding for mobile app that converts (+30–50% activation across 350+ apps). 🔥 Top 0.001% in Mobile App Design | 350+ apps launched | $900M+ raised 🤝 Trusted by Spotify, Meta, Marriott, Pyx Health, Blush.Design & 1150+ companies ⚡ Boosts mobile app design conversion +53% & retention +32% wellness AI apps  🎯 Growth UX/UI Designer for Mobile App UI UX Mobile Figma Designer 💎 Why Clients Choose Me Most apps fail because they don’t engage users from the first session. I help founders and product teams redesign apps that convert, retain, and scale. My focus - strategic Mobile UI UX Design & UI UX redesigns for mobile apps, including first session, onboarding, and paywalls. I blend growth design, gamification, and data-driven UX to turn underperforming apps into high-impact, revenue-generating products. 📊 Growth Results 📱 Wellness Mobile App Design +55% 2nd-day retention after onboarding Mobile UI UX redesign 💊 Healthcare Mobile App Design +40% more sign-ups after registration flow Mobile App UI UX design 🧘‍♀️ Yoga & Meditation Mobile App Design +47% DAU increase after gamified onboarding 🛍️ E-commerce Mobile App +38% revenue growth after checkout UX audit 🎓 Education Mobile App +60% course completion after gamified onboarding Mobile App UI UX Redesign 💬 Social Mobile App +35% more messages sent after Mobile App UI UX Redesign ✈️ Travel Mobile App +33% more bookings after search & filter Mobile App UI UX Design ⚡ Productivity Mobile App +29% task completion after mobile-first UX overhaul 🎯 Who I Work With Funded startups seeking investor-ready designs Pre-seed & Seed startups preparing to raise funding - I build investor decks through UX Strategy + clickable Figma prototypes that visualize business potential Growth-stage apps improving retention, onboarding, and paywalls Mobile App UI UX Design Enterprises scaling engagement through Mobile App UX/UI Redesigns 💼 About Me 📱 350+ Mobile Apps designed & redesigned on App Store & Play Store 💰 $750M+ raised with my Mobile App UI UX solutions 💻 100 years in Mobile App Design & Mobile UI UX Design (if you count my 3,5x senior speed and 350+ launched mobile apps 📱) 🩵 3000+ Mobile App Design project designed also Web Design, Mobile Design, Graphic Design, Product Design, Growth Design in Figma 📈 55%+ average conversion growth after mobile app redesigns and audits 👥 900+ clients worldwide from startups to Fortune 500 & Inc 5000 💼 1150+ funded startups scaling faster with Growth Design for Mobile Apps UI UX 🛍️ 50+ e-commerce apps with +35% revenue growth 🎨 17,000+ Dribbble followers & 3M+ views- Mobile App Design Trendsetter 🥇 Uplabs Challenge Winner Mobile App UI UX Challenge (2018 & 2020): Best Wellness Healthcare Mobile App Design | Best E-Commerce Mobile Design UX UI 🇪🇸 Based in Spain (CET Time Zone) 🧠 What I Deliver ✅ Full Mobile App Design & Redesign UI UX ✅ UX/UI Mobile App UI UX Design Audits to identify conversion leaks and growth potential ✅ Onboarding Optimization & First Session Strategy for Mobile App UI UX Design ✅ Gamification Systems that boost retention for Mobile App UI UX Design ✅ Growth-Focused UX Strategy for scaling user engagement for Healthcare Mobile App UI UX Designer ✅ Investor-Ready UX Strategy + Clickable Figma Prototype - crafted for Mobile App UI UX Design to help startups attract investors confidently ✅ Design Systems & UI Kits for scalable mobile apps ✅ App Store Screenshots for Mobile App UI UX Design - pitch & launch ready 💡 Process: from research and strategy to growth audit, clickable prototype, and final polished UI -each step designed to deliver measurable business impact for Mobile App UI UX Design 📚 My Expertise • First Session Optimization turning new users into active ones • Gamified UX/UI Design - retention loops & engagement systems • Mobile App UX Audits - conversion leak detection • Wellness, Fintech, Education, Productivity, Social, Fitness, E-commerce, Travel, Healthcare, and AI-powered apps - growth-driven design across industries • End-to-End Design Process- from UX research & wireframes to final UI and post-launch analysis 💬 What Clients Say “Onboarding drop-off fell by 60% after UX audit.” - Healthcare Startup Founder “Our wellness app revenue grew by 55% after onboarding redesign.” - Healthcare Wellness Mobile App CEO “The clickable prototype helped us close $1.2M seed round.” - Education Gamified App Co-founder 🚀 Let’s Grow Your App ⚡ Only a few consultation slots available this month. Let’s scale your app with Growth Design & Mobile App Design BOOK A STRATEGIC CONSULTATION TO REVIEW YOUR Mobile App Design, ONBOARDING, GAMIFICATION, AI APP EXPERIENCE, RETENTION & GROWTH STRATEGY Last update: June 3, 2026
Anna S. has worked .
Manish P.
$16/hr
100% Job Success
$200K+ earned
Available now
Offers consultations
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🏆 Top Rated Plus Mobile App Developer | 100% Job Success | 🚀 10+ Years Experience 📱 iOS & Android App Development | Flutter | React Native | Kotlin | Swift | AI-Powered Apps | Full Stack I’m a 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with 𝟏𝟓𝟎+ 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐞𝐝 𝐣𝐨𝐛𝐬 𝐚𝐧𝐝 $𝟐𝟎𝟎𝐊+ 𝐞𝐚𝐫𝐧𝐢𝐧𝐠𝐬 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤, specializing in 𝐢𝐎𝐒 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭, 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞, 𝐚𝐧𝐝 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐚𝐩𝐩 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭. I don’t just code I help you plan, improve, and scale your product. I help startups, agencies, and businesses turn their ideas into 𝐬𝐭𝐚𝐛𝐥𝐞, 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐚𝐧𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐫𝐞𝐚𝐝𝐲 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬. I design and build apps the way they should be 𝐟𝐚𝐬𝐭, 𝐜𝐥𝐞𝐚𝐧, 𝐚𝐧𝐝 𝐛𝐮𝐢𝐥𝐭 𝐭𝐨 𝐬𝐜𝐚𝐥𝐞, whether it's a 𝐧𝐚𝐭𝐢𝐯𝐞 𝐢𝐎𝐒 𝐚𝐩𝐩 (𝐒𝐰𝐢𝐟𝐭 / 𝐎𝐛𝐣𝐞𝐜𝐭𝐢𝐯𝐞-𝐂), 𝐧𝐚𝐭𝐢𝐯𝐞 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐚𝐩𝐩 (𝐊𝐨𝐭𝐥𝐢𝐧 / 𝐉𝐚𝐯𝐚), or a 𝐜𝐫𝐨𝐬𝐬-𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐚𝐩𝐩 𝐮𝐬𝐢𝐧𝐠 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐨𝐫 𝐅𝐥𝐮𝐭𝐭𝐞𝐫. ✤ 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐌𝐨𝐝𝐞𝐫𝐧 𝐓𝐨𝐨𝐥𝐬 I specialize in AI-powered mobile app development using modern tools and workflows to build smarter, faster, and scalable applications. • OpenAI / ChatGPT Integration • AI Chatbot Features for Mobile Apps • AI Assistant & Smart Features • AI Content Generation Features • AI Automation & Workflow Features • GPT-based Mobile App Features • AI-powered Search & Recommendations • AI API Integration • Claude AI & Gemini AI Integration • AI-assisted coding using Cursor IDE • AI-powered debugging & optimization • Rapid MVP development using AI tools By leveraging 𝐀𝐈 𝐭𝐨𝐨𝐥𝐬 𝐥𝐢𝐤𝐞 𝐎𝐩𝐞𝐧𝐀𝐈, 𝐂𝐥𝐚𝐮𝐝𝐞, 𝐚𝐧𝐝 𝐂𝐮𝐫𝐬𝐨𝐫, I help 𝐫𝐞𝐝𝐮𝐜𝐞 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐭𝐢𝐦𝐞, 𝐢𝐦𝐩𝐫𝐨𝐯𝐞 𝐞𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲, 𝐚𝐧𝐝 𝐝𝐞𝐥𝐢𝐯𝐞𝐫 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐫𝐞𝐚𝐝𝐲 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐬 𝐟𝐚𝐬𝐭𝐞𝐫. ✤ 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐏𝐫𝐨𝐜𝐞𝐬𝐬 𝐈𝐝𝐞𝐚 → 𝐏𝐥𝐚𝐧𝐧𝐢𝐧𝐠 → 𝐔𝐈/𝐔𝐗 → 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 → 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 → 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 → 𝐎𝐧𝐠𝐨𝐢𝐧𝐠 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 ✤ 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐈 𝐎𝐟𝐟𝐞𝐫 • Mobile App Development (iOS & Android) • AI-Powered Mobile App Development • Generative AI App Development • AI Chatbot Integration • OpenAI API Integration • ChatGPT Integration • AI Automation Features • AI Assistant Features • iOS App Development (Swift, Objective-C) • Android App Development (Kotlin, Java) • React Native App Development • Flutter App Development • Cross-Platform & Hybrid App Development • MVP Development for Startups • API Integration & Backend Connectivity • Firebase Integration (Auth, DB, Notifications) • Push Notifications • Payment Gateway Integration • Real-Time Chat Applications • GPS & Map Integration • In-App Purchases & Subscription Systems • App Performance Optimization • Bug Fixing & Application Improvements • App Store & Google Play Deployment • Ongoing Maintenance & Long-Term Support ✤ 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥𝐬 React Native Developer | Flutter Developer | iOS Developer | Android Developer Swift | Objective-C | Kotlin | Java Firebase | REST API | GraphQL Push Notifications | Payment Gateway Integration ✤ 𝗔𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 & 𝗧𝗼𝗼𝗹𝘀: AI Mobile App Developer | OpenAI API | GPT Integration Claude AI Developer | Cursor AI IDE | AI Coding Tools Chatbot Development | AI Automation | Smart App Features ✤ 𝐌𝐨𝐝𝐞𝐫𝐧 𝐀𝐈 𝐓𝐨𝐨𝐥𝐬 & 𝐀𝐈-𝐀𝐬𝐬𝐢𝐬𝐭𝐞𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Cursor AI IDE | Claude AI | OpenAI | ChatGPT | Gemini AI | Replit AI | Lovable AI | Bolt.new | Windsurf AI | V0 by Vercel | AI-Assisted Coding | AI-Powered Debugging | AI Code Refactoring | AI Performance Optimizatio Git | GitHub | Bitbucket Postman | Swagger Jira | Trello | ClickUp Figma | Adobe XD I keep communication clear, timelines realistic, and take full ownership of the work. If you need a 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, 𝐢𝐎𝐒 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, 𝐨𝐫 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐄𝐱𝐩𝐞𝐫𝐭, I’d be happy to help. Let’s start with a 𝐪𝐮𝐢𝐜𝐤 𝟏𝟓–𝟑𝟎 𝐦𝐢𝐧𝐮𝐭𝐞 𝐜𝐚𝐥𝐥 𝐭𝐨 𝐮𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝 𝐲𝐨𝐮𝐫 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐦𝐞𝐧𝐭𝐬 𝐚𝐧𝐝 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐛𝐞𝐬𝐭 𝐰𝐚𝐲 𝐭𝐨 𝐦𝐨𝐯𝐞 𝐟𝐨𝐫𝐰𝐚𝐫𝐝. ============================== Mobile App Developer | Expert Mobile App Developer | Mobile App Development | AI Mobile App Developer | Mobile Developer | iOS Developer | Android App Developer | React Native Developer | Flutter Developer | Cross Platform Development | Hybrid App Development | AI App Developer | AI App | App Developer | iOS App Development | Android App Development | React Native App Development | Flutter App Development | Firebase | Dart | Flutter Firebase | API Integration | User Authentication | In App Purchases | Smartphone Apps | GPT Integration | OpenAI Integration
Manish P. has worked .
Dynamic Dreamz: Shopify Development, AI, WordPress Development, Mobile App & Full-Stack Development
Associated with
Dynamic Dreamz: Shopify Development, AI, WordPress Development, Mobile App & Full-Stack Development
$5M+
earned
Aashish B.
$16/hr
100% Job Success
$100K+ earned
Available now
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𝐒𝐞𝐧𝐢𝐨𝐫 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 | 𝟯𝟬+ 𝐀𝐩𝐩𝐬 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 | 𝟭𝟭+ 𝐘𝐞𝐚𝐫𝐬 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 | 𝟯𝟱𝟎𝟎+ 𝐇𝐨𝐮𝐫𝐬 𝐁𝐢𝐥𝐥𝐞𝐝 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 | 𝐢𝐎𝐒 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 | 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩𝐬 ✅ Delivered 30+ high-quality mobile apps with 5★ client ratings ✅ Helped startups launch MVPs and scale to production ✅ Integrated AI (ChatGPT / OpenAI) into real-world applications ✅ Built apps across e-commerce, healthcare, fintech, travel & more I am a Senior Mobile App Developer specializing in building scalable, high-performance, and user-friendly mobile applications. With strong expertise in Kotlin, Swift, Flutter, and React Native, I focus on delivering apps that not only work flawlessly but also drive business growth and user engagement. I bring hands-on experience in UI/UX design, API integration, cloud services, and AI implementation, ensuring your app is modern, efficient, and future-ready. 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐒𝐭𝐚𝐜𝐤: ✔️ Mobile App Development: Flutter, Dart, Kotlin, Swift, SwiftUI ✔️ AI Integration: OpenAI API, ChatGPT-powered features ✔️ Backend & APIs: Node.js, Python (FastAPI, Flask, Django), REST, GraphQL ✔️ Databases: Firebase, Firestore, SQLite, MySQL, MongoDB ✔️ Cloud Services: AWS, Google Cloud, Firebase Cloud Functions ✔️ Tools & Version Control: Git, GitHub, GitLab, Bitbucket, Jira, Trello ✔️ UI/UX: Figma, Adobe XD, Material Design, Cupertino 🔹 𝐂𝐚𝐩𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬: 𝐂𝐮𝐬𝐭𝐨𝐦 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 – Android (Kotlin/Java), iOS (Swift), Flutter 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐀𝐩𝐩𝐬 – Single codebase for Android & iOS with high performance 𝐒𝐨𝐜𝐢𝐚𝐥 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 – Google, Apple, Facebook login & APIs 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 – Stripe, Razorpay, PayPal, In-App Purchases 𝐑𝐞𝐚𝐥-𝐓𝐢𝐦𝐞 𝐂𝐡𝐚𝐭 – Firebase, Socket, Twilio, live messaging & calling 𝐋𝐨𝐜𝐚𝐭𝐢𝐨𝐧 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 – Google Maps, geolocation, real-time tracking 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 – ChatGPT, automation, smart assistants 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐀𝐏𝐈𝐬 – Scalable backend systems (Node.js, Python) 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 – OAuth, 2FA, secure authentication systems 𝐐𝐑 / 𝐁𝐚𝐫𝐜𝐨𝐝𝐞 – Scanning, generation, payment use-cases 𝐀𝐩𝐩 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 – Play Store & App Store publishing 𝐌𝐚𝐢𝐧𝐭𝐞𝐧𝐚𝐧𝐜𝐞 – Bug fixing, performance optimization, upgrades 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜’𝘃𝗲 𝗪𝗼𝗿𝗸𝗲𝗱 𝗜𝗻: ✔ AI-powered mobile apps with chatbot & automation features ✔ MVP development for startups (fast launch & validation) ✔ Healthcare & fitness apps (telemedicine, tracking, HealthKit) ✔ Meditation & wellness apps with AI chat support ✔ Travel & booking apps with real-time services ✔ Social media & dating apps with chat & events ✔ Food delivery apps with live order tracking ✔ Loyalty & rewards apps with payments & subscriptions ✔ Real-time chat & messaging platforms ✔ On-demand service apps (booking, scheduling) ✔ Productivity & task management apps ✔ Music & audio streaming apps I focus on delivering clean, scalable code, on-time delivery, and business-driven solutions that help clients succeed. If you're looking for a reliable and experienced Mobile App Developer, let’s discuss your project and turn your idea into a powerful app. 🚀 Mobile App Developer, Android Developer, iOS Developer, Flutter Developer, React Native Developer, AI App Developer, ChatGPT Integration, API Integration, Backend Developer, Node.js, UI/UX Design, Payment Gateway Integration, Firebase, AWS, Real-time Apps, Push Notifications, App Deployment, Full Stack Developer
Aashish B. has worked .
Deftsoft
Associated with
Deftsoft
$10M+
earned
Eldar M.
$39/hr
100% Job Success
$1M+ earned
Available now
Offers consultations
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Hi, I'm Eldar, your future technical partner here on the Upwork :) ⚡ AI-streamlined delivery: expect a working MVP in 1–2 weeks. I'm a senior Flutter Developer and full stack developer at Dreambit with 10+ years in full-cycle Mobile App Development, and I use AI across the whole workflow — planning, code generation, testing, and review — to compress timelines where that is possible without cutting corners. I've delivered 50+ apps with 100K+ downloads and a consistent 5-star rating, working with startups, agencies, and enterprise clients to plan, build, and scale products that thrive in the real world, going well beyond the traditional mobile app developer role. As a dedicated flutter app developer, I ship iOS Development, Android App Development, and Web from a single Flutter Stack + Dart codebase — one source of truth running natively on every smartphone, which is how I keep delivery fast and maintenance low across those 50+ launches. Need to move quickly on an MVP? I work as a flutterflow developer to validate ideas in days. Need depth? I hand-write flutter for complex products and build rock-solid flutter firebase backends (auth, Firestore, Cloud Functions, push) — including offline-first sync engines with conflict resolution, payments, and real-time sessions that hold up at 100K+ users. I'm also a seasoned React Native Developer with deep React experience. If your product runs on react native mobile, I cover react native expo and bare workflows, native react native ios builds, polished Android UI, and fluid 60fps react native animation. Plenty of clients arrive needing mobile app development react native support and stay for a cleaner, unified foundation — whether you're hiring your first react developer, replacing a previous react native developer, or migrating off one entirely, I make the transition painless. Beyond the app I work as a web developer, building secure APIs and admin panels with Node.js, NestJS, TypeScript, and Python, integrating cleanly with whatever you already run — including a legacy Laravel backend — so your mobile app and web dashboard stay in sync. My stack: Flutter, Dart, React Native, Firebase, Node.js, TypeScript, JavaScript, Swift, Kotlin, Java, Python. I also add AI features that feel native to the product — orchestrating LLM workflows, intelligent agents, and "chat with your data" setups with guardrails and cost control, so you get real utility, not buzzwords. As a senior mobile application developer, I own the full lifecycle: thoughtful mobile app design and UI/UX (a big reason behind that 5-star rating), plus practical input on mobile app marketing and store optimization so your launch actually lands. Industries: Healthcare, Fintech, Social & dating, Meditation, Astrology, and E-commerce — including secure, regulated environments. We handle compliance-heavy projects and stay current with EU and US rules, and we're registered in both the US and EU, so billing and invoices are never a problem. You can check our quality right now in the stores — this year we've already shipped 7 apps (15 last year), and "release" never means we walk away: many products run on a 6-month roadmap with updates every 2–4 weeks. I act as your partner across the whole journey — consultation, technical decisions, design, or publishing help — you can count on me and my team. We don't just deliver the project; we flag the risks and find the fastest path to your ROI. And if you need help with an existing app — a rescue, or lifting conversion and retention — my experience is fully at your disposal. Dreambit cares — whether you're non-technical, just starting your development journey, scaling an existing business or app, or you need serious expertise in mobile development and AI integration for your product or a wider service offering. If what you're really after is reliable, honest work here on Upwork, you've found the right team. Why Dreambit: ✅ Total Ownership from Day One — you hold the keys to all source code, repositories, and accounts, and always see exactly what you're paying for through clean, meaningful commits. ✅ Guaranteed Pricing & "No Demo, No Invoice" — we never exceed our pessimistic estimates unless scope changes; milestone payments are strictly tied to live demos of working features. ✅ Transparent Team, No Subcontractor Secrets — the team you meet is the team that builds your product; direct access to your developers, no bait-and-switch, no unvetted offshore handoffs. ✅ Extreme Ownership & Weekly Demos — no finger-pointing, no hiding from calls; proactive weekly updates, and if a challenge arises, we bring solutions, not excuses. ✅ Built-in QA & Warranty — built to scale, not to break; work is "done" only after rigorous UAT, backed by a one-month bug-free warranty on every invoice. 📩 Message me for a free 30–60 min consultation and I'll share my Upwork scheduler link Updated 05.07.2026
Eldar M. has worked .
dreambit LLC - Flutter mobile and web development
Associated with
dreambit LLC - Flutter mobile and web development
$1M+
earned
Ivan A.
$35/hr
100% Job Success
$200K+ earned
Available now
Offers consultations
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👉 YOUR FIGMA FILE IS READY TO BUILD FROM DAY ONE. OR I FIX IT FREE. 🔴 Most mobile app projects fail at handoff. Developers stop. Founders pay twice. I built a process that prevents it. 🥇 TOP-RATED UI UX DESIGNER ON UPWORK · TOP 1% IN MOBILE APP DESIGN 📱 100+ Projects · 14 Years as UI UX Designer · Healthcare · Wellness · Social · SaaS Hi, I'm Ivan, a UI UX Designer and Mobile App Design specialist for early-stage founders, Seed to Series A. I run Grona Agency, a UI UX Design studio where every Figma file is dev-ready from day one. As a Mobile App Design expert and UIUX Designer, I work with founders building iOS and Android products across healthcare, wellness, SaaS, and fintech verticals. ✅ What I do as your UI UX Designer and Mobile App Design partner ❇️ Mobile App Design & Mobile App UI UX As a Mobile App Design expert and Mobile UI UX Designer, I specialize in mobile app design in Figma for iOS and Android, App Store and Play Store ready. As a UIUX Designer and Figma Mobile App Designer, I cover every screen, state, and edge case. I deliver pixel-perfect, annotated Figma files your developers can build from immediately, including onboarding flows, empty states, error states, and loading states. As a UI UX Designer Figma specialist, every mobile app design file ships with annotated components, auto-layout, and developer specs. 📊 Mobile App Design results by vertical: 📱 Wellness — onboarding completion +60-80% 💊 Healthcare — free trial conversion +15-30% 🚀 SaaS — D1 retention +30-40% 📲 Fintech — activation rate +25-40% 💬 Social — D7 retention +20-35% ❇️ Onboarding & First Session Strategy As a Mobile App Design specialist, most apps lose users in session one. Not bad UI. Broken activation flow. As a UI UX Designer focused on retention, I redesign onboarding sequences and paywalls to maximize activation. Avg. lift: +30-50% across mobile app design engagements. ❇️ Mobile App Redesign & UX Audit As a Mobile App Design and UI UX Designer audit specialist, I diagnose drop-off in existing iOS and Android apps. As a UIUX Designer, I deliver a prioritized fix list backed by user flow analysis. Available standalone or as the first phase of a full mobile app ui ux design engagement. ❇️ UI UX Designer for SaaS, Web Design & Dashboards As a UI UX Designer and product designer, I design dashboards, web design systems, and user flows for SaaS and B2B products. As a UIUX Designer and graphic designer, I cover visual identity and brand assets when founders need one creative partner. ❇️ Figma Mobile App Designer, Wireframing & Prototyping As a UI UX Designer Figma specialist and Figma Mobile App Designer, I deliver high-fidelity wireframes, interactive prototypes, and design systems. 100+ mobile app design projects refined into one Figma process that catches every edge case before development starts. ❇️ UX Research & User Flows As a Mobile UI UX Designer, every mobile app design engagement starts with research. I map user flows, define information architecture, and design around real behavior. Edge cases covered before a single screen is designed. ❇️ Usability Testing & Design QA As a UI UX Designer, I validate every mobile app design decision before development begins. Pre-Launch Design QA: I review your staging build against the original Figma file. Every state, every edge case, every flow checked. ✅ Specialized services Investor-Ready Sprint: 3 high-fidelity screens + core user journey in 7 days, for fundraising or Product Hunt. Dev-Ready Guarantee: Missing screen or state in agreed scope, I fix it free. No other UI UX Designer on Upwork offers this. ✅ My process UX Research · Wireframing · Mobile App UI UX Design · Figma Prototyping · Usability Testing · Handoff & QA ✅ Why hire me ▪ 14 years as UI UX Designer · Mobile App Design specialist ▪ 100+ projects · healthcare, wellness, SaaS, fintech · iOS and Android · cross-platform ▪ Onboarding +30-50% · D1 retention +30-40% · conversion +15-30% ▪ UX research, user flows, information architecture in every engagement ▪ Usability testing and design QA before every handoff ▪ Mobile App Redesign · SaaS · Web Design · Graphic Designer work available ▪ Dev-Ready Guarantee · no other UI UX Designer on Upwork offers this Verticals: Healthcare · Wellness · SaaS · Fintech · E-commerce · Education · Social Specialties: Mobile App Design · UI UX Designer · Mobile UI UX Designer · UIUX Designer · UI UX Designer Figma · Figma Mobile App Designer · Mobile App Redesign · Web Design Ready to grow? Let's connect.
Ivan A. has worked .
Grona Agency — Dev-Ready MVP Design for Non-Technical Founders
Associated with
Grona Agency — Dev-Ready MVP Design for Non-Technical Founders
Syed Mohsin K.
$40/hr
100% Job Success
$50K+ earned
Available now
Offers consultations
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🏆 Top Rated | 100% Job Success | 5/5 Client Ratings | 15+ live apps shipped 🏆 💡 I build mobile apps with AI baked in not bolted on. Hi, I'm an Android & iOS Mobile App Developer and AI Integration Expert, helping founders and established teams ship production-quality mobile products with real AI features users actually use. 🚀 Android & iOS Mobile App Developer | AI Integration Expert | Swift • Kotlin • React Native • Flutter As a Top Rated Android & iOS mobile app developer on Upwork with a 100% Job Success Score and 15+ live apps shipped, I help clients go from a rough idea to a scalable, AI-powered mobile product on the App Store and Google Play. Whether you need a native iOS app with Swift, a native Android app with Kotlin, or a cross-platform solution, I deliver Android & iOS mobile app development with AI integration OpenAI GPT-4, Google Gemini, LangChain, and RAG pipelines built in from day one. From health & wellness and fintech to e-commerce and SaaS, my experience as an AI-integrated mobile app developer spans multiple industries backed by a production team that has shipped 50+ live products, so you're never bottlenecked by a single point of failure. ✅ Why Partner with Me as Your Android & iOS Mobile App Developer: 15+ successful iOS and Android apps, live on the App Store and Google Play AI integration expertise OpenAI GPT-4, Google Gemini, LangChain, RAG pipelines, vector databases 100% Job Success Score and Top Rated status on Upwork Backed by a full production team for scalability beyond a single freelancer Cross-platform builds (Flutter, React Native) and native builds (Swift, Kotlin) AI-powered mobile apps chatbots, smart assistants, predictive features, semantic search Fintech, Health & Wellness, E-commerce, and SaaS mobile app development MVP App Development from idea to App Store & Google Play launch AI Mobile App Development: retrofitting AI into existing products users already love 🛠️ Services I Provide as an Android & iOS Mobile App Developer (AI Integration): Native iOS app development with Swift & SwiftUI Native Android app development with Kotlin & Jetpack Compose Cross-platform app development with React Native & Flutter AI integration: OpenAI GPT-4, Gemini, LangChain, RAG pipelines, vector databases UI/UX design for iOS and Android apps Backend & cloud integrations: Firebase, Supabase, AWS REST and GraphQL API development CI/CD and App Store / Google Play submission 🎯 Industries I Specialize In as an Android & iOS Mobile App Developer: 💊 Health & Wellness | 💰 Fintech | 🛒 E-Commerce | 📊 SaaS Platforms | 🤖 AI-Powered Apps All powered by Android & iOS mobile app development with AI integration built in. 🚀 Advanced Features I Build with AI Integration: ✔ AI chatbots & smart assistants (OpenAI, Gemini) ✔ RAG pipelines with vector databases for context-aware AI ✔ Predictive features & personalization engines ✔ Firebase & cloud-based backend integrations ✔ Real-time chat & push notifications ✔ Social login (Google, Apple) ✔ Offline mode & smart data sync ✔ App Store Optimization & submission 💬 Why Choose Me as Your Android & iOS Mobile App Developer: I bring deep expertise in Android & iOS mobile app development with AI integration built in from day one not retrofitted as an afterthought. Whether you're a startup building an MVP or an established team modernizing your product with AI, I'm the Android & iOS mobile app developer and AI integration expert who can turn your vision into a shipped, scalable product. 📲 Let's connect and build a powerful AI-integrated mobile app together. Your trusted Android & iOS mobile app developer and AI integration expert is just one click away. Send over your brief or even a rough idea I'll respond with questions, a realistic timeline, and an honest take on fit. Mobile App Development, iOS Development, Android Development, Flutter, React Native, Swift, Kotlin, Firebase, OpenAI API, ChatGPT Integration, Gemini AI, AI Mobile Apps, Cross-Platform App Development, API Integration, UI/UX Design, Native Mobile Apps, SaaS Apps, E-commerce App Development, RAG, LangChain, Vector Database
Syed Mohsin K. has worked .
Sagarkumar S.
$16/hr
100% Job Success
$300K+ earned
Available now
Offers consultations
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Are you looking for a Mobile app developer who can design and develop your app for the next millions of users? ARE YOU - Looking for a mobile app development service starting from the design, development to release and publish a mobile app to Play Store and App Store for mobile app users/customers. - Looking for a mobile app developer who can integrate new features into your existing Android app, iOS app or Flutter app based projects? - Individual | Big company | Startup who wants to build and create Android app or iOS app from scratch? - Looking for a mobile app developer who can transform your idea into reality? - Someone who invests in the best so you get better results? If any of that is what you need, message me and I am here to help you. Who am I? - I'm Sagarkumar Surani, a Senior Mobile App Developer with 10+ years of experience and a Master’s degree in Computer Science and Engineering. - I worked with big brands, startups and individuals to create mobile apps for their requirements. My work also got featured a few times in the market store. Apps developed by me have 100 million+ downloads on store and users love to keep the app on their phone as a permanent app. - I’ve worked with clients from over 40 countries, such as the USA, UK, Germany, India, and Australia, which has given me a strong understanding of different international markets. My experience covers a variety of industries, including Travel and Tourism, train ticket booking, transport, educational, hospitality, health & wellness, real estate, live streaming, Marketplace, food & delivery, human resources, fitness, financial & banking sectors, e-commerce, dating, sports, Betting, music/audio, and automotive. I specialize in these high-quality Mobile App Design and Development areas: - Android app development - Kotlin, Java, Android SDK, Android Studio - iPhone app development - Swift, SwiftUI, Objective C, iOS SDK, Xcode - Backend Development | Node.js - Cross Platform Mobile App Development using Flutter, Dart - UI/UX: Mobile design - Mobile & Web app design - UX/UI design - Landing page design Skills : - Have experience developing, releasing & maintaining applications as a Mobile app developer - Strong skills in executing pixel & animation perfect UI's relative to good app performance - Have great communication skills and ability to work with your team - Have a great understanding of MVC, MVP, MVVM and take great care to ensure each project is well-architecture with best practices and easily maintainable so it can be enhanced as feature grows. - The ability to take initiative and work independently with very little supervision - Application requirement analysis - Translating requirements to technical languages In addition to Mobile app development services, my topic areas of expertise include: - Mobile Application Architect - Native Mobile Application Development consultation - Mobile Application UI/UX design using Figma, Adobe XD - Mobile Application backend services Firebase, AWS Mobile Hub - Mobile Application backend development: Node, Express, TypeScript, JavaScript, MongoDB, MySQL, PHP, RESTful API development, Google App Engine - Website development, Web Scraping, Web Admin Panel, CMS Development - Chatbot development, Facebook Messenger If you still think this is right for you, contact me. Thank you in advance for your time and consideration. Kind Regards Sagarkumar Surani P.S. - When you work with me your satisfaction is 100% guaranteed. - Every person who ever worked with me got results. EVER! - Even if you don’t hire me now, keep my profile link in case you need a Mobile App Developer later. FAQ Q: Can you provide maintenance support after development? A: Yes, I provide free of cost maintenance support for 12 months after mobile app development. Q: Can you help with Mobile app design? A: Yes, I offer a Mobile app UX design as an additional service. Q: Can you help with the landing page website for my mobile app product? A: Yes, I can help to build the landing page for a mobile app product. Warmly, Sagarkumar Surani ----------------------------------------------------- Native Android App Developer, iOS App Developer, Cross-Platform Flutter App Developer, Top Flutter Developer, React Native, Hire Best MERN Stack Developer, RESTful API Developer, API Integration, Frontend Developer, React.js, Backend Developer, Nodejs, Javascript, Figma, UI/UX Design, Prototype, In-app purchases, Location, Payment Gateway Integration, Apple Xcode, Android Studio, Push notifications, User authentication, User profile creation, QA, Unit Testing, Regression Testing, Dating App, Ecommerce App, RevenueCat, Adapty, 3rd Party SDK Integration, SQLite, MySQL, Firebase Cloud Firestore, Realtime Database, Kotlin, Swift, Java, Dart, SwiftUI, Twilio, Mapbox, HealthKit, Google Analytics, Amazon Web Services, DigitalOcean, Core Data, UIKit, MapKit, Phone, Full Stack Developer, iPad, OpenAI ChatGPT LLM, ChatGPT API Integration .
Sagarkumar S. has worked .