Khawar H.

Need a mobile app built, finished, or fixed, and live on both stores without surprises? Top Rated Plus | 96% Job Success | 190+ Upwork jobs | $600K+ earned | 150+ apps shipped | 1M+ downloads on a single app 📱 MOBILE APPS, END TO END I've spent 11 years building iOS and Android apps. Flutter is my main stack; I also build in React Native (Expo) and native Swift/Kotlin, with Firebase or Supabase behind them, and I handle App Store and Google Play releases myself: listings, signing, review, and the first week of crash monitoring. 🤖 AI FEATURES INSIDE YOUR APP Chat assistants, voice and speech-to-text, OCR, smart recommendations, built into Flutter and React Native apps using OpenAI and Claude APIs, with usage limits and cost controls so your bill doesn't surprise you. YOU'RE A GOOD FIT IF YOU'RE THINKING: • "I have the idea and the designs; I need someone to build the first version and get it live." • "Our app is live but slow, buggy, or stuck in App Store review." • "A previous developer, FlutterFlow, or an AI tool got us halfway. We need it finished and published." • "We need payments, subscriptions, maps, chat, or push notifications added without breaking what works." • "We want a senior developer who can take over the codebase, not a team we have to manage." STACK • Mobile: Flutter, React Native (Expo), Swift/SwiftUI, Kotlin • Backends for mobile: Firebase, Supabase, Node.js, Laravel • Payments: Stripe, RevenueCat, in-app purchases and subscriptions • Store and delivery: TestFlight, Play internal testing, GitHub Actions / Codemagic CI, Crashlytics APPS I'VE SHIPPED • AWCC Asan: telecom self-care app, 1M+ downloads • Glossary Planner: native shopping-list app, 100K+ downloads • Temple Bliss: live consultations with chat, audio and payments, 20K+ users • JDiamond Qatar: jewellery e-commerce app, 12K+ downloads • HitchHyke: ride-sharing platform, rider and driver apps plus dispatch, taken from MVP to live product • 2026: a ride-hailing MVP for a US startup, feature and store updates for a sports community app, and a forum app with push notifications and a dual-store release HOW I WORK • Weekly working builds on TestFlight / Play internal testing, so you see the app, not a status report. • Clean architecture (BLoC/Riverpod), CI from day one, crash and analytics tooling before launch. • I lead and write the code personally; a TechSwivel designer or QA joins when a project needs it. You always know who is doing the work. • I build with Claude Code and Cursor, which is how I deliver a working build every week; every line is reviewed by a senior engineer before it ships. Not sure what your app needs or what it should cost? Book a consultation below. You'll leave with a scope, a stack recommendation and a realistic estimate, and a written one-pager within 24 hours. Flutter developer · React Native developer · mobile app developer · iOS and Android app development · app bug fixes and updates · App Store and Google Play launch · FlutterFlow to Flutter · Firebase · Supabase · AI mobile apps