Mobile App Development: iOS, Android, Flutter & React Native
Senior mobile app developer with 13+ years of experience delivering iOS, Android, Flutter, and React Native apps for startups and enterprise teams in the US. From MVPs to scaled products, I focus on stability, performance, and long-term maintainability.
Expect clear architecture, clean UI implementation, and store-ready delivery that covers analytics, crash monitoring, and release readiness.
What I Deliver
- Native iOS apps with Swift and SwiftUI
- Native Android apps with Kotlin and Jetpack Compose
- Flutter and React Native cross-platform builds
- API integration, offline sync, and push notifications
- Performance tuning and crash reduction
- App Store and Play Store launch support
- Analytics, monitoring, and release pipelines
Best For
- Startup MVPs and rapid product launches
- Enterprise mobile app modernization
- Feature delivery for existing apps
- Teams needing US time zone support
- Long-term maintenance and scaling
Platforms
iOS
Native iOS apps in Swift and SwiftUI, following Apple's guidance for performance, security, and user experience, and built for long-term maintainability.
iOS app development →Android
Native Android apps in Kotlin with modern architecture components, a focus on clean code, smooth UI, and compatibility across devices.
Android details below →Flutter
One codebase for iOS and Android, with apps that feel native on both platforms and a consistent user experience.
Flutter development →React Native
Production-ready React Native apps for rapid product development, with native integrations and clean architecture.
Cross-platform development →Android Development
Native Android development using Kotlin as the primary language and Jetpack Compose for UI, following Material Design guidelines and Android best practices across phones and tablets.
Kotlin and Jetpack Compose
- Kotlin for safer, more concise code
- Compose UI with Material Design 3
- Coroutines and Flow for async work
- Room for local storage, Retrofit and OkHttp for networking
- Firebase integration (Auth, Firestore, FCM)
Compose vs XML Views
Compose is the modern declarative toolkit: less boilerplate and reactive state management, so it is the default for new screens. XML views remain the right choice where an app needs backward compatibility or integrates with legacy View-based code.
Android Architecture
- MVVM with ViewModel and LiveData/StateFlow
- Repository pattern as a single source of truth
- Dependency injection with Hilt
- Feature modules for larger apps
- Testing with JUnit, Espresso, and MockK
Play Store Publishing
Play Console setup, app signing, release tracks, and release management, with testing across multiple devices and Android versions before launch.
Industries & App Types
I have built mobile applications across fintech, healthcare, fitness, e-commerce, logistics, and SaaS platforms, for both startups and enterprise-level teams. For banking and payments apps, where onboarding, KYC, transfers and sign-in have to pass a bank’s security review, see fintech and banking app development.
Architecture & Backend Support
Beyond the app itself, I design backend systems and APIs that support mobile clients: secure authentication, real-time data handling, and admin panels. See backend and API development for details. For LLM-backed or on-device ML features, see AI integration for mobile apps.
Delivery Essentials
- REST APIs and GraphQL integration
- Firebase analytics and crash reporting
- CI/CD for TestFlight and Play Console
Typical Outcomes
- One codebase across iOS and Android when cross-platform is the right call
- Lower crash rates with defensive coding and monitoring
- Store-ready releases with clear compliance prep
- Scalable architecture for multi-year roadmaps
Planning a build?
Before choosing a platform, it helps to scope what the first release needs to prove. The mobile MVP playbook covers how to scope and ship a first version, and MVP vs full build walks through when a leaner launch is the better investment.
Frequently Asked Questions
Which platform should I start with?
Start with iOS for premium audiences or Flutter/React Native for faster multi-platform delivery. I help select the best approach based on your timeline and budget.
Should I build native or cross-platform?
Native (Swift for iOS, Kotlin for Android) gives the most direct access to platform APIs and the closest match to each platform's conventions. Cross-platform frameworks like Flutter and React Native share one codebase across iOS and Android, which usually shortens delivery when both platforms need the same features. The right call depends on how platform-specific the app is, the team that will maintain it, and the launch timeline.
Can one developer cover both iOS and Android?
Yes, for many products. A cross-platform framework lets one developer ship both apps from a shared codebase, and a developer who works in both Swift and Kotlin can build native apps for each platform. Larger apps with separate native codebases often benefit from dedicated platform engineers as they grow.
Should a new Android app use Kotlin and Jetpack Compose?
For most new Android apps, yes. Kotlin is Google's recommended language for Android, and Jetpack Compose is its modern declarative UI toolkit. XML views still make sense when an app has to integrate with an existing View-based codebase.
Do you handle App Store and Play Store launches?
Yes. I handle signing, provisioning, TestFlight, Play Console setup, and store metadata optimization.
Planning a mobile app build?