Most developers build you an app. I build you a product. There's a difference. An app is code that works. A product is something users actually keep using. I know the difference because I've been on both sides. I built Traderverse, a social trading platform that scaled to 28,000 users. I also built ScanIt and Just Invoice, my own apps, with my own money, live on the App Store today. That means when you come to me with an idea, I'm not just thinking about the code. I'm thinking about your users, your launch, and what happens after. I work with startups and founders who need: - A solid MVP they can actually show investors - A production app built to scale, not just ship - An iOS or React Native developer who gets it SwiftUI, Swift, React Native, RevenueCat, Vision, AlarmKit, HealthKit, Swift Charts. Got an idea? Tell me about it. I typically reply within 30 minutes.

With 7+ years building iOS and cross-platform apps, I know how to ship products that scale, retain users, and generate revenue. I work directly with founders and CEOs who need a developer they can trust to own delivery end-to-end. ────────────────────────────── WHY FOUNDERS CHOOSE ME ────────────────────────────── • Honest scoping: I give you real estimates, not the number you want to hear. • End-to-end ownership: From architecture to App Store approval - I handle it all. • 100% Job Success Rate across all client engagements on Upwork. ────────────────────────────── AI-ACCELERATED DEVELOPMENT ────────────────────────────── I actively integrate AI into every stage of my workflow - not as a gimmick, but as a force multiplier that directly benefits your project: • AI-assisted coding & code review: I use AI tools daily (Cursor, GitHub Copilot, Claude) to write, refactor, and audit code faster without sacrificing quality. • Prompt Engineering: I design and optimize prompts for AI features inside apps - from LLM API integrations to on-device ML pipelines. • Vibe Coding: I can rapidly prototype full working features from a brief description or rough wireframe, compressing weeks of back-and-forth into days. This is a genuine competitive advantage for early-stage founders who need to validate ideas quickly as mobile developer • Outcome: Faster iterations, lower cost, and more time spent on what matters — your product's core value. ────────────────────────────── WHAT I DELIVER ────────────────────────────── • IOS Developer (Swift, SwiftUI, UIKit, Objective-C) & Mobile Developer (Flutter, React Native) • Clean Architecture, MVVM-C - code your next developer will actually understand • Monetization: StoreKit 1/2, RevenueCat, subscriptions, paywalls — built to convert • Legacy Modernization: I'm one of the few devs who can safely refactor Objective-C without breaking production • App Store Delivery: Certificates, provisioning, review rejections - 100% approval rate ────────────────────────────── INDUSTRY EXPERIENCE ────────────────────────────── • Fintech & Payments — Invoicing platforms, Stripe/PayPal/Apple Pay, multi-region flows • SaaS & Productivity — 50k+ DAU ecosystems with AI integration, WebSockets, real-time sync • GIS & Navigation — Offline-first MapBox routing, background GPS, battery optimization • Media & Streaming — Custom video players, multi-level caching (−1.5s playback latency) • B2B Field Tools — GPS time tracking with geofencing for 100+ construction sites • Social & Gaming — Real-time multiplayer with WebSocket state sync, voice, IAP • Sports & Training — Structured coaching programs with progress tracking • E-commerce & Retail — High-load cart sync, loyalty programs, cinema booking ────────────────────────────── TECHNICAL STACK ────────────────────────────── Mobile: Swift, SwiftUI, UIKit, Objective-C, Flutter (Dart), React Native (TypeScript) Architecture: Clean Architecture, MVVM-C, VIPER, Modularization (SPM) AI & ML: LLM API integration, CoreML, Vision Framework, Prompt Engineering Data: Core Data, Realm, Firebase, Firestore, SQLite (Drift) Networking: URLSession, Alamofire, GraphQL, WebSockets, REST CI/CD: Fastlane, GitHub Actions (−30% deployment time) ────────────────────────────── WHY WORK WITH ME ────────────────────────────── • No Over-Engineering: Right tool, right job - I protect your budget. • AI-Powered Speed: I deliver in days what others quote in weeks. • Revenue-Focused: I've shipped monetized apps with subscriptions and premium features - I understand that launching is just the beginning. • Direct Communication: Clear updates, honest estimates, zero corporate jargon. • Long-Term Reliability: I build apps meant to last, not just pass the initial review. Have an app idea or a product that needs rescuing? Click "Invite" - let's talk.

Hi 👋 , I’m Patrick, an iOS developer with a strong foundation in Swift, SwiftUI, and Apple’s latest frameworks. I specialize in building modern, stable, and beautifully crafted iOS applications from scratch, tailored to your business goals. Whether you’re a startup founder, product owner, or team lead, I help turn ideas into production-ready apps — from the first line of code to App Store submission. 💡 Technical Expertise - Swift, SwiftUI, Combine, Xcode - Core Data, Firebase, Supabase, MongoDB Realm - AI feature integration - REST API integration & data fetching - MVVM architecture - TCA architecture - Local & push notifications - UserDefaults & AppStorage - AVKit for multimedia applications - Version control with Git 🧠 How I Work - Discover & Plan - Understand your product goals before coding - Define clear technical direction and timelines - Build & Deliver - Write clean, modular, and testable code - Share early prototypes and optimize for performance - Communicate & Collaborate - Async updates with regular video check-ins - Clear documentation and transparent decisions - Launch & Support - Smooth TestFlight & App Store releases - Ongoing support, scaling, and iteration 🤝 What You Can Expect - Fast and reliable communication - Scalable, maintainable codebase - Product-focused collaboration - Availability for critical support - Long-term partnership when needed

💼 Senior Full-Stack Developer | 10+ Years of Experience | React Native | Flutter | Swift/Kotlin | NodeJS | VueJs | NestJS | SwiftUI | JetCompose | Firebase | Supabase | Mobile Apps | BLE | GPS | Maps | Scalable Systems | Mobile App Development | AI Mobile App Development | Flutter App Development | React Native App Development | iOS & Android App Development | Full Stack Mobile App Development | Kotlin | Swift | SwitUI | JetCompose | Firebase | REST APIs I am a Senior Full-Stack Developer with 10 + years of experience building high-quality, scalable, and pixel-perfect applications using React Native, Flutter, Swift, Kotlin, NodeJS, Express, NestJS, React, and Vue.js. -- specialize in cross-platform mobile apps, native iOS/Android apps, backend APIs, BLE integrations, real-time systems, mapping, GPS, IoT, and end-to-end product development. If you need a fast, reliable, and experienced developer who can take your idea to production-level quality, I can help. Let’s bring your app idea to life with AI-driven innovation, seamless UX/UI design, and robust scalable architecture. Senior Mobile App Development | Web Development | iOS Android | Flutter RN | React Native | SDK Web dev | Kotlin | Swift | SwiftUI | JetCompose ⭐ Why Clients Hire Me⭐ ✔ 10+ years of experience ✔ End-to-end process: Idea → MVP → Launch → Scaling ✔ Clean, maintainable code (SOLID, MVVM, best practices) ✔ Expertise in AI integrations for smarter user experiences ✔ Full transparency, agile workflow, and long-term partnership ✔ Flexible engagement: fixed-price or hourly ✔️ Fast and scalable delivery ✔️ Clear communication & fluent English ✔️ Clean, well-documented code ✔️ Budget-friendly without sacrificing quality ✔️ Self-managed and deadline-driven ✔ Pixel-perfect UI from Figma ✔ Bug-free, scalable, clean code architecture ✔ Expertise in native (Swift/Kotlin) + cross-platform (React Native/Flutter) ✔ Strong backend experience with Node.js & NestJS ✔ API design, integrations & automation ✔ Performance optimization & code refactoring ✔ OTA updates, CI/CD, deployment (App Store & Play Store) 🛠️ 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 I Work With 🚀 Mobile App Development - React Native, Expo, React Navigation - Flutter, Dart - Swift, SwiftUI, UIKit - Kotlin, Jetpack Compose 🚀 Backend & Full-Stack - Node.js, Express.js, NestJS - MongoDB, Firestore - Firebase Authentication / Firestore / FCM - REST APIs, Realtime DB, Cloud Functions - CI/CD pipelines (Fastlane, GitHub Actions) 🚀 Advanced Integrations - Google Maps, GPS tracking, Geofencing - Bluetooth & BLE (IoT apps) - Payment gateway integration - WebSockets & real-time messaging - Push notifications - Deep linking - Third-party API integration - APIs: REST, GraphQL - AI Tools: OpenAI (GPT), TensorFlow, Computer Vision, Google Gemini, Deepseek 🧩 Industries & Projects I Have Built I have successfully delivered apps in multiple domains: 🎟 Event & Ticket Booking Apps 🍔 Food Delivery & On-Demand Apps 🚖 Taxi Booking & Ride Sharing Apps 🏏⚽ Sports Apps (Cricket & Football) 💇‍♀️ Beauty Service Apps 💬 Real-Time Chat & Video Calling & Social Apps 💘 Dating Applications 🎮 2D Games 📍 GPS & Location Tracking Systems 📡 IoT & BLE-based Apps 🎁 Loyalty Points & Rewards Apps & Coupon Apps 📱 MVP App Development for Startups 💪 Health, Fitness & Meditation Apps ✈️ Travel & Ticket Booking Apps 🗂️ Productivity & Task Management Apps My experience helps me understand both product and technical requirements, ensuring smooth delivery and long-term maintainability. ⭐ Let’s Build Something Great If you need a senior, reliable, and long-term developer who can ship high-quality products, feel free to message me. I’m available for new projects, long-term cooperation, or part-time support. 📞 Schedule a free consultation — click Invite or Message to get started. Thank you, Avtar Singh Mobile App Development, Flutter App Development, Cross-Platform Mobile App Development, Hybrid App Development, Mobile App Design, Android App Development, iOS App Development, Real Estate App Development, Food Delivery App Development, Dating App Development, AI Mobile App Development, Full Stack Mobile App Development, Mobile App Consultation, Mobile App Development Specialist, Native (iOS & Android) Developer, AI Mobile App Expert, Full Stack Developer

Experienced iOS Developer with 5 years of experience with Objective-c, Swift and SwiftUI, demonstrated a history of working in the information technology and services industry. Strong in design and integration of problem-solving skills. Proficiency in SQL, MySQL with database analysis and design. Skilled in developing IOS applications, requirements specifications, and user documentation. Strong written and verbal communication.

👋 Hi there! I’m an iOS App Developer passionate about creating custom iOS mobile apps that are smooth, modern, and user-friendly using Swift, SwiftUI, and AI-powered features. I love turning ideas into polished mobile experiences that are fast, intuitive, and visually appealing. Over time, I’ve worked on various kinds of iOS projects — from building apps completely from scratch to improving existing ones and adding advanced features like ChatGPT, CoreML, and VisionKit. My focus is always on writing clean, maintainable code. 🚀 What I Can Help You With: * Full iOS App Development (Swift / SwiftUI / UIKit) * AI & Machine Learning integration (ChatGPT, CoreML, VisionKit) * Firebase & RESTful API setup * In-App Purchases, Apple Pay, and notification systems * Bug fixing, performance optimization, and feature updates 🛠 Technologies I Work With:
Swift, SwiftUI, UIKit, AVFoundation, CoreML, Combine, WebKit, Core Data, UNNotification, Auto Layout, Storyboard/XIB, SPM, MVC, MVVM, Git, and More. I’m always eager to explore new technologies and continuously improve my skills. Each project is an opportunity to learn something new and help clients bring their ideas to life through creative and efficient iOS solutions. 📩 Let’s connect — I’d love to hear about your project and discuss how we can turn your idea into a great iOS app!

Passionate iOS developer with a 5-year track record in creating elegant and efficient mobile applications. Proficient in Swift, specialising in turning innovative ideas into robust code. Experienced in collaborating with cross-functional teams to deliver high-quality software. Always eager to explore new technologies. 🚀 Key Skills: =========== Swift | SwiftUI Xcode | Interface Builder MVC | MVVM RESTful APIs | JSON Git

⚡ Available for iOS Development Senior iOS Developer with 8+ years of experience building high-performance, production-ready apps 30+ shipped apps with 500K+ downloads across health-tech, logistics, and e-commerce. I focus on clean architecture, smooth UX, and scalable code that's easy to maintain and extend. 📌 Selected Work: - Built iOS app with 500K+ downloads - Delivered subscription-based platform used by international users (US & EU) - Developed logistics app with real-time tracking and complex feature set - Shipped health & fitness app with personalized user experiences 📱 iOS Development Expertise: - Swift, SwiftUI, UIKit — native iPhone & iPad apps - Clean Architecture, MVVM, VIPER — scalable & maintainable code - REST API & Firebase integration - Payments: StoreKit 2, RevenueCat, Stripe, Apple Pay - Unit Testing (XCTest), UI Testing, CI/CD (Bitrise, Jenkins) - BLE, camera, GPS, push notifications, real-time features - App Store submission & performance optimization ⭐ Why clients choose me: - Top Rated with 100% Job Success Score - Strong focus on performance, UX, and clean architecture - Fast communication & reliable delivery - Experience working with international teams (US & EU) If you need an iOS developer who ships clean, performant apps that users actually enjoy. Let's build something great. Specializations: iOS Development · SwiftUI Expert · AI Mobile Apps · LLM / OpenAI Integration · MVP Development · Health & Fitness Apps · Subscription Apps (StoreKit 2) · Firebase Backend · Scalable Mobile Architecture · REST & GraphQL APIs · BLE Integration · App Store Optimization · SaaS Mobile Apps

🚀 iOS Developer | Swift & SwiftUI Expert | Custom UI • API Integration • Scalable Architecture Hi, I’m Esma – an iOS developer with a strong foundation in Swift, SwiftUI, and Apple’s latest frameworks. I specialize in building modern, stable, and beautifully crafted apps from scratch, tailored to your business needs. Whether you're a startup founder, product owner, or team lead, I help you bring ideas to life from first line of code to App Store submission. Specialty in the following Technical Skills: -Swift, SwiftUI, Combine Framework, Xcode -Core Data, Firebase, Supabase, MongoDB Realm -AI Integration -API Integration and Data Fetching -MVVM Architecture -Notifications (Local and Push) -User Defaults, App Storage -AVKit for Multimedia Applications -Custom UI/UX Design in Figma -Version Control with Git 🧠 How I Work Discover & Plan • Understand your goals before coding • Define technical priorities and clear timelines Build & Deliver • Write clean, modular, testable code • Share early prototypes and optimize for performance Communicate & Collaborate • Async updates and regular video check-ins • Clear documentation and transparent decisions Launch & Support • Smooth App Store/TestFlight releases • Ongoing support, scaling, and iteration 🤝 What to Expect • Fast, reliable communication • Scalable, maintainable code • Product-focused collaboration • Available for critical support • Long-term commitment when needed

Senior iOS Engineer with 10+ years of experience building high-quality apps, fixing critical performance issues, and shipping features end-to-end. I specialize in jumping into existing codebases, diagnosing what’s wrong fast, and delivering clean, maintainable solutions without slowing your team down. I’ve led development on large-scale consumer apps, including high-traffic retail and e-commerce systems, and I’m extremely comfortable with modern Swift, SwiftUI, UIKit, concurrency, Combine, and architectural patterns (MVVM-C, modularization, dependency injection, etc.). What I’m great at: 🔹 Building new features from scratch 🔹 Fixing crashes, optimizing performance, and improving stability 🔹 Cleaning up messy or legacy UIKit code 🔹 Refactoring for modularity and long-term maintainability 🔹 Rapid MVP builds for startups 🔹 Quick bug fixes, triage, and App Store compliance issues I work fast, communicate clearly, and deliver work that holds up long after the project ends. If you need a senior engineer who can ship, not just talk about architecture — I can help. Hourly Rate: $95–$120 (depending on scope and urgency)