I help founders and product teams build, rescue, and launch production-ready native iOS apps with Swift, SwiftUI, UIKit, StoreKit 2, Firebase, APIs, SDKs, and App Store/TestFlight delivery. I’m Top Rated on Upwork with 100% Job Success, $10K+ earned, 10 completed jobs, and 9 rated 5.0. My strongest work is native iOS, but I can also build native Android companion apps with Kotlin/Jetpack Compose when a product needs Android parity. Recent work includes: • Launch rescue for a native iOS marketplace: fixed beta blockers, integrated Crashlytics, Sign in with Apple, Stripe PaymentSheet, Apple Pay, backend checkout/order fixes, and App Store release support. • StoreKit 2 modernization for a legacy Objective-C/Objective-C++ iOS app suite, including paid-app-to-freemium entitlement repair for around 2,500 legacy users. • SwiftUI apps shipped to the App Store with StoreKit 2 purchases, SwiftData, private CloudKit sync, TestFlight QA, and production fixes. • Native Android apps with Kotlin/Jetpack Compose, Firebase, maps/location workflows, Google Play testing/review support, and Android parity for iOS-first products. • AI app work with OpenAI API text/image workflows, StoreKit 2 credit packs, SwiftData history, and native iOS UX. • iOS SDK work involving StoreKit 2 transaction monitoring, backend reporting, deduplication, retries, and local persistence. I’m a strong fit if you need: • A new native iOS app built from Figma/API to TestFlight or App Store • AI feature integration: chat, text generation, image workflows, structured outputs, assistants, credits, usage limits, and backend proxy integration • StoreKit 2 purchases, subscriptions, credits, restore purchases, or paywall fixes • Legacy iOS modernization, Objective-C/UIKit cleanup, or messy app rescue • Stripe PaymentSheet, Apple Pay, checkout, cart/order, or marketplace launch support • Firebase, CloudKit, maps, background location, push notifications, or API integration • Native Android parity with Kotlin/Jetpack Compose for an iOS-first product • An iOS SDK, Swift Package, or native integration where reliability matters The best way to start is a focused milestone: audit, bug fix, launch-readiness review, or one feature slice. You’ll get clear communication, practical tradeoffs, and implementation that moves the app closer to production.

Expert iOS Developer | Swift, SwiftUI, WatchOS & WidgetKit Tech Lead and indie iOS developer with 6+ years of experience building high-quality iOS, macOS, and watchOS apps. I've delivered projects for top national and international clients, and one of my SwiftUI apps recently hit 10K+ downloads. I work with modern Apple tech like SwiftUI, Combine, HealthKit, WidgetKit, and WatchOS, and love building intelligent features using CoreData, CloudKit, CoreML, and Vision. 🌟 What I Do: • Design elegant UIs with SwiftUI & UIKit • Add Apple Watch and widget support • Implement reactive flows using Combine & async/await • Integrate HealthKit, SiriKit, MapKit, and REST APIs • Ensure robust code with CoreData, CI/CD pipelines, and automated testing • Handle App Store submission and TestFlight rollout 🌟 Why Work With Me: • Clean architecture — MVVM/Clean/VIPER/VIP/TCA • Fast delivery with no compromise on quality • Transparent, client-first communication (weekly demos, fast updates) • Focused on your users and goals Looking to build a polished iOS, macOS, or WatchOS app, add widgets, or optimize your existing codebase? Message me—I'll reply within an hour, and we’ll launch something great together!

Mobile Application Developer. Expert in Kotlin, Java, Flutter, and Firebase Backend, Supabase, AI integration. Hi, I am Raj Jani. Flutter and Android App developer. I have 6+ years of experience developing Flutter (Android + IOS) and Native Android Apps. I am an expert in Flutter-Dart, Kotlin, and Java. I have worked on various Android Projects like a Food delivery App, a bike ride portal app, a Wallpaper app, a Music and Video Player App, and a Word Game. I am an expert with Firebase, Laravel back-end. My expertise: 1. Flutter cross-platform app development (IOS and Android). 2. MVVM architecture, clean code, MVC, APIs development integration, payment gateway integration, 3rd party SDK integration, Google APIs integration. 3. AI integration, Firebase, Supabase, Node.js backend, etc. 4. State management tools: BLoC, Cubit, Reverpod, Getx, Provider 5. App store and Play store deployment and issue fixes. Thanks in Advance. Let's work together, Raj Jani

Hi! I’m Andrei, a Senior iOS and Flutter Developer with 7+ years of experience building and improving production mobile apps. I work with startups, agencies, and businesses that need reliable mobile products, clean architecture, and a developer who can take ownership. Most recently, I have been the sole developer of an automotive mobile app with 100,000+ monthly active users. I handled the full development lifecycle, including architecture, feature development, complex integrations, App Store releases, monitoring, performance, and continuous UX improvements. What I can help with: • Native iOS development with Swift, SwiftUI, UIKit, Objective-C, and Combine • Flutter development for cross-platform apps and MVPs • Building new apps from idea to App Store release • Refactoring and modernizing existing codebases • Custom navigation and advanced UI flows • Media playback, maps, geolocation, and real-time features • Firebase, REST APIs, WebSockets, notifications, and third-party SDKs • Performance, crash reduction, and scalability improvements Selected experience: • Automotive app with 100,000+ monthly active users • 100% crash-free user rate during the measured production period • Waste-management platform with RTSP streaming, WebSockets, Mapbox, and offline-first workflows • Social streaming app with live challenges, real-time chat, voting, and media sharing • Finance and crypto apps with live data, secure storage, alerts, and portfolio tracking I focus on: • Clean and maintainable code • Stable releases • Strong UI and UX • Clear communication • Practical solutions that support long-term growth Need a new app, an MVP, or help improving an existing mobile product? Let’s discuss your project.

Got an app idea, an existing app that needs fixing, or a project a previous developer left half-built? I'm a Flutter and iOS developer with 8+ years of experience and a 100% Job Success Score on Upwork, I build mobile apps that work reliably, perform smoothly, and are built to last beyond launch day. Whether you need a Flutter cross-platform app for iOS and Android, a native iOS app built in Swift and SwiftUI, or a complete mobile product from wireframe to App Store, I handle the full development lifecycle, solo and without middlemen. → Flutter App Development Cross-platform iOS and Android apps built with Dart → iOS App Development Native Swift, Objective-C and SwiftUI apps for iPhone and iPad, built to Apple's standards, optimised for App Store approval, TestFlight testing, in-app purchases, push notifications, and full Apple ecosystem integration. → Android App Development Native Kotlin and Java apps for Google Play, structured for long-term maintainability, smooth performance, and reliable Play Store deployment. → Firebase & Backend Integration Firestore, Authentication, Cloud Functions, real-time databases, and push notifications, scalable backend architecture that grows with your user base, not against it. → API & Third-Party Integrations REST APIs, Stripe and Razorpay payment gateways, Google Maps, live location tracking, real-time chat, push notifications, and custom third-party SDKs, integrated cleanly the first time. → App Store & Play Store Deployment End-to-end submission, compliance checks, metadata, screenshots, and post-launch maintenance so your app goes live without delays or rejections. 📌𝗪𝗵𝗮𝘁 𝘆𝗼𝘂 𝗮𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝗴𝗲𝘁 𝗮𝘁 𝘁𝗵𝗲 𝗲𝗻𝗱 𝗼𝗳 𝗲𝘃𝗲𝗿𝘆 𝗽𝗿𝗼𝗷𝗲𝗰𝘁: → An app users open and love to use → A codebase you own fully, documented and ready for your next developer or feature sprint → Performance that holds up under real traffic → A product that's genuinely finished, submitted, live, and supported post-launch → Development decisions tied to your business outcomes I've built mobile apps across healthcare, fintech, e-commerce, on-demand delivery, fitness, edtech, real estate, and social networking for individual founders, product teams, and enterprise clients. Send me your project details, and I'll respond with a clear technical approach, tech stake, timeline, and investment within 8 hours. 🔑 𝐒𝐄𝐎 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 : Mobile App Developer | Flutter Developer | iOS Developer | Android Developer | Swift Developer | Kotlin Developer | Cross Platform App Developer | Full Stack Developer | React.js Developer | Node.js Developer | Firebase Developer | SaaS App Developer | MVP Development | Startup App Developer | AI App Developer | API Integration Expert | App Store Deployment | Google Play Store Expert | Scalable App Development | Custom Mobile App Developer | UI UX Focused Developer | Agile App Developer | Clean Architecture Developer | Payment Integration Expert | Real Time App Developer | Cloud Backend Developer | Long Term Development Partner

BOOK A FREE CALL FOR A TECH CONSULTATION OR CODE AUDIT ! Need a Flutter mobile app that works flawlessly on iOS and Android delivered on time and on budget? I'm a Flutter Developer and Full-Stack engineer with 21 years of experience turning complex requirements into clean, scalable products. What sets me apart is the rare combination of deep mobile expertise (Flutter/Dart, Bloc, REST, WebSockets) and full-stack backend strength (.NET, ASP.NET Core, C#, PostgreSQL, Azure). I've built everything from government utility platforms and banking card systems to music streaming apps and video content portals, so I understand both the mobile UX and the server architecture that keeps it running under load. Here's what I can build for you: 📱 Cross-platform Flutter apps for iOS and Android (Bloc, Provider, REST API, OAuth, WebSockets) 🔧 .NET / ASP.NET Core backend APIs and microservices 🗄️ Database design and optimization (MSSQL, PostgreSQL) 🌐 Angular frontends integrated with your backend ☁️ Cloud deployment and DevOps (Azure, Docker, RabbitMQ) 🔍 Code audits and architecture reviews for existing projects - Complex web apps with .NET, C#, ASP.NET Core REST API, SOAP, WCF, WebSockets - Database architecture (MSSQL, PostgreSQL) - Modern frontends (HTML, CSS, JavaScript, Angular) - Cloud solutions (Azure, Docker, RabbitMQ) ✅ Top Rated on Upwork - 5.0 rating across all completed contracts ✅ Certified Flutter Mobile App Developer ✅ Delivered production apps for government agencies, banks, and consumer platforms ✅ 21+ years of professional software development Send me a message describing your project and I'll reply within a few hours with a clear plan and honest timeline.

🔸 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗦𝗘𝗟𝗟𝗘𝗥 | 𝗙𝗹𝘂𝗲𝗻𝘁 𝗶𝗻 𝗘𝗻𝗴𝗹𝗶𝘀𝗵 🔸 Expert Mobile App Developer with 9+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 in the software industry 🔸 Skilled in Mobile App Development for both iOS and Android platforms, as well as Hybrid and Cross Platform Development using Flutter 🔸 Over 𝟯𝟬+ 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 as an Expert Mobile App Developer that lives on the App Store and Google Play Store, covering a range of applications (𝖾.𝗀. 𝖾-𝖼𝗈𝗆𝗆𝖾𝗋𝖼𝖾, 𝖼𝗎𝗌𝗍𝗈𝗆𝖾𝗋 𝗅𝗈𝗒𝖺𝗅𝗍𝗒 𝗉𝗋𝗈𝗀𝗋𝖺𝗆𝗌, customer-service provider, sports app, grocery app, management app, music player and many more..) 🔸 Adheres to best coding practices and follows Agile patterns to deliver high-quality software solutions as an Expert Mobile App Developer 🔸 Extensive experience as an Expert Mobile App Developer allows for accurate project estimates, efficient design implementations, and cost-saving strategies 🔸 Proficient in project management tools such as Asana, Jira, Git, Slack 🔸 Ensures smooth collaboration with clients and team members as an Expert Mobile App Developer for both iOS and Android platforms.

Enthusiastic iOS developer, audio engineer and musician. Providing solutions for businesses that need top-tier iOS experiences or audio work.

My name is Jakhongir, and I help small and mid-sized businesses build reliable, user-friendly iOS applications that are easy to maintain and ready for the App Store. My focus is clean Swift code, stable architecture, and smooth user experiences that perform well in real-world usage. I have strong fundamentals in programming, discrete mathematics, and object-oriented design, which allows me to understand complex requirements quickly and adapt to new technologies without friction. Whether you need a new iOS app, improvements to an existing one, or help with App Store updates and releases, I can support you end to end. iOS Development Expertise: - Native iOS development using Swift & UIKit - Responsive UI with Auto Layout, SnapKit, and reusable components - App Store & TestFlight builds, updates, and post-release support - Dependency management using CocoaPods - Local data storage with Realm - Clean, readable, and maintainable code (KISS principles) Networking & API Integration: - REST API integration using URLSession and Alamofire - GraphQL APIs with Apollo GraphQL - Secure data handling and efficient network performance Architecture & Code Quality - Experience with MVC, MVVM, and VIPER - Strong OOP principles and separation of concerns - Version control using Git - Code structured for long-term scalability and easy handover I communicate clearly, deliver on time, and keep the codebase clean so future updates are straightforward. My goal is not just to make the app work, but to make it stable, readable, and ready to grow as your business grows. If you’re looking for a dependable iOS developer who understands both the technical and practical side of shipping apps, I’d be happy to help. Looking forward to have a detailed conversation with you.

Struggling to find a mobile developer who ships production-ready apps — not just prototypes? I build Native Android, Native iOS, and React Native applications that hold up under real-world pressure: high traffic, unreliable networks, hardware integrations, and tight deadlines. Most recently: I built and deployed a multi-terminal Android POS & Kiosk system that processed AUD 1.5M+ via Stripe across 100+ devices in 10 days at the Sydney Royal Easter Show 2025 — running reliably in poor network conditions throughout. That's the standard I hold myself to on every project. WHAT I BUILD 🔹 Android & iOS Apps — Kotlin, Swift, Jetpack Compose, Clean Architecture, MVVM 🔹 React Native — Production apps with analytics, CI/CD, auth integrations and more 🔹 Payment & Hardware Systems — Stripe Terminal, RFID, BLE, kiosk, POS 🔹 Backend — Node.js, NestJS, REST APIs 🔹 Offline-First Systems — Sync, retry logic, transaction integrity, fault tolerance WHERE I'VE DELIVERED 💳 Fintech & payment platforms 🛍️ E-commerce & booking apps 🎪 High-traffic event platforms (agenda, networking, AR navigation) 🏭 IoT & hardware-integrated mobile systems 🔐 Access control & identity systems WHY CLIENTS REHIRE ME I don't hand off prototypes and disappear. I think in systems, considering edge cases, failure modes, and long-term maintainability before writing line one of code. You get an engineer who cares whether your product actually works in production. Independently vetted: accepted into an elite global engineering network with a sub-3% acceptance rate Average response time under 2 hours Delivered across US, EU, and UAE clients in remote cross-functional teams If your project involves real complexity, payments, hardware, offline logic, scale, or a hard deadline, let's talk. Send me a message describing your project and I'll respond within a few hours with honest thoughts on fit.