Abu B.

I build Flutter and React Native mobile apps that real users download: 100K+ on the Play Store, many of them AI-powered. I'm Abu Bakar, a mobile app developer with 4+ years of Flutter and React Native app development for iOS and Android. I specialize in AI app development: mobile apps that use OpenAI, Claude, and Gemini to personalize, recommend, scan, and coach, not just chat. Every project on this profile is 5-star rated with a 100% Job Success Score. APPS I'VE BUILT THAT ARE LIVE AND GROWING Calorii: AI Fitness Coach. 100K+ downloads, 4.5 stars (300+ reviews). AI meal plans, snap and voice calorie logging, AI body-scan insights, workout planning, leaderboards, and wearable integration in one cross-platform app. FitnessAI: Gym Workout Planner. 50K+ downloads, 4.4 stars (1,100+ reviews). AI algorithm that auto-adjusts sets, reps, and weights every session, trained on millions of workouts. The Fast 800. 50K+ downloads, 4.7 stars (690+ reviews). Personalized meal plans, 1,000+ recipe library, guided workouts, meditations, and community support for a UK health brand. Plus many more mobile apps across e-commerce, fintech, food delivery, social, EdTech, and on-demand services, several under NDA. WHAT WORKING WITH ME ACTUALLY LOOKS LIKE Working MVP within 5 to 7 days of kickoff: a real build you can test and show investors. Architecture planned for scale from day one (clean architecture, Riverpod/Redux, modular code), so going from 1K to 100K users doesn't mean a rebuild. One cross-platform codebase for iOS and Android, roughly 40% less cost and time than two native builds. Daily updates, milestone-based delivery, no surprises on scope or price. PROBLEMS I SOLVE REGULARLY "We need to launch fast to validate the idea." MVP development in under a week, then iterate on real user feedback. "We want AI in our app but don't know where to start." I've shipped AI coaching, meal generation, body scanning, and recommendation engines to 100K+ users. I know what works and what just burns API credits. "Our app lags or crashes at scale." Performance audits, state-management refactors, and backend optimization. "Our previous developer disappeared mid-project." Codebase takeover, cleanup, and completion for Flutter and React Native apps. "We need payments, maps, chat, push, subscriptions." Stripe, PayPal, Razorpay, RevenueCat, Google Maps, Firebase, WebSockets, all shipped and tested. TECH STACK Flutter, Dart, React Native, Expo, TypeScript | OpenAI, Claude, Gemini APIs | Firebase, Supabase, Node.js, PostgreSQL, MongoDB | REST, GraphQL, WebSockets | AWS, Google Cloud | GitHub Actions CI/CD | Figma to code | App Store and Google Play deployment INDUSTRIES Health and fitness, AI coaching apps, e-commerce, fintech and wallets, healthcare and telemedicine, food delivery, social and messaging, EdTech, on-demand marketplaces, ERP and CRM-style business apps. LET'S START WITH A FREE 20-MINUTE CONSULTATION Send me your idea or requirements and within 24 hours you'll get: the right framework for your case (Flutter vs React Native, chosen honestly, not by default), a realistic timeline and cost, and a technical plan for anything complex like payments, AI, or real-time features. If your mobile app needs to ship fast and still hold up at scale, click "Invite" or send a message. I reply within a few hours.