Alan M.

Mobile App Developer with 10+ years in mobile app development: 50+ apps shipped to the App Store and Google Play, 500,000+ downloads, a Top-15 banking app in Ukraine and a Top-10 photo editor. I build Flutter, native iOS (Swift) and Android (Kotlin) apps that hold up with real users. Top Rated, 100% Job Success, 47 completed jobs on Upwork, zero missed deadlines in 10 years. One Flutter codebase for both stores, or native iOS and Android when the product needs it. After 50+ builds, I've already solved the problems your mobile app is about to run into. MOBILE APPS I'VE SHIPPED • RB24: mobile banking app for a Ukrainian bank. Kotlin + Swift. Top-15 finance app in Ukraine. Biometric login, 2FA, virtual cards, banking-grade security with zero tolerance for downtime. • Fix The Photo: photo editing mobile app in Flutter. 300,000+ downloads, Top-10 in its category. Heavy image processing on iOS and Android from one codebase. • Visiting Aid: HIPAA-compliant home care mobile app for US agencies. Scheduling, care plans, GPS-based electronic visit verification (EVV), secure messaging. OMIG/DOH-approved, 6 languages. • KAI ñu dem: Flutter ride-hailing app live across Senegal. Real-time driver tracking, airport transfers, cash and mobile-money payments. Keeps working where the signal doesn't. • DOT: mobile app for NFC-enabled notebooks. • Coin Scope: AI mobile app that identifies coins from a photo. MOBILE APP DEVELOPMENT SERVICES ✔ Flutter app development: one codebase, two stores, up to 40% cheaper than two native builds, without the "feels like a website" problem. ✔ Native iOS app development (Swift) and Android app development (Kotlin) when performance or security demands it. Proven on a banking app. ✔ AI mobile app development: OpenAI API, assistants, chatbots and image recognition running in production apps, not demos. ✔ MVP mobile app development for startups: scope cut to what validates the idea, architecture ready for what comes next. No rebuild at 10K users. ✔ Mobile app rescue: I take over unstable codebases, fix bugs and crashes, then scale them. ✔ Mobile app consultation: architecture review, stack choice, estimates. ✔ The full pipeline: Firebase (Auth, Firestore, FCM push notifications), REST & GraphQL APIs, payments and subscriptions (RevenueCat, Qonversion, Stripe, in-app purchases), CI/CD with Fastlane, Bitrise and GitHub Actions, App Store and Google Play release. WHAT CLIENTS SAY "I worked with Alan for about 3 months on my mobile app and had a really good experience. He consistently delivered great results and was transparent throughout the whole project." "It is rare to find a developer who balances technical mastery with genuine personability, but Alan does exactly that." "I've been working with Alan for more than 8 years now. Alan has always been reliable, delivered projects/tasks on time (no matter the complexity), and required minimal supervision." FAQ Flutter or native? Flutter for most products: one codebase, faster mobile app development, lower cost. Native Swift and Kotlin when you need heavy device features, maximum performance or banking-grade security. Can you take over an existing mobile app? Yes. I start with a short code audit, fix what's critical, then continue development. Do you handle the App Store and Google Play release? Yes, including store listings, review issues and updates after launch. INDUSTRIES Fintech and banking apps, healthcare apps, marketplaces, ride-hailing and location-based apps, SaaS, photo and media apps, education apps, AI apps. HOW I WORK Clarify the product → design the flows → ship in testable iterations → optimize performance → release and support. Clean architecture, code the next developer won't curse, honest timelines. STACK Flutter · Dart · Swift · Kotlin · Firebase · Node.js · GraphQL · SQLite · OpenAI API · RevenueCat · Qonversion · Fastlane · Bitrise · GitHub Actions Send me what you're building. Within 24 hours you'll get a rough estimate and the one technical decision I'd settle before writing a line of code. - Alan