SystemHarbor

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Mobile App Development 

Cross-platform mobile apps built with React Native and Flutter. One codebase, two platforms, native performance.

Save 40-60% on development costs compared to building separate iOS and Android apps, without compromising on quality or user experience.

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What We Build

From consumer apps to enterprise solutions, we build mobile experiences that users love.

Cross-Platform Development

One codebase for iOS and Android. React Native and Flutter let us build apps that work on both platforms while feeling completely native.

Native Performance

60fps animations, instant touch responses, and smooth scrolling. Our apps perform just as well as native Swift or Kotlin apps.

Hot Reload Development

We iterate fast with instant code updates. See changes in real-time without rebuilding the entire app.

Offline-First Architecture

Your app works even without internet. Data syncs automatically when connection is restored.

Push Notifications

Engage users with targeted notifications. Segment audiences, schedule sends, and track open rates.

App Store Deployment

We handle the entire submission process. From screenshots to metadata to approval - we get your app live.

Technologies We Use

Modern, battle-tested frameworks chosen for performance and maintainability.

React Native

React Native CLIExpoTypeScriptReduxZustandReact NavigationReanimatedNativeWindReact Native PaperAsync StorageMMKVReact QueryAxiosSocket.IO Client

Flutter

DartBLoC PatternProviderGetXFlutter HooksRiverpodDioHiveFreezedFlutter Secure StorageGoRouterDrift

Backend & APIs

FirebaseSupabaseREST APIsGraphQLWebSocketsPush NotificationsAWS AmplifyStripe APITwilio APIGoogle Maps APIApple MapKitFCMAPNs

DevOps & Tools

FastlaneCodePushTestFlightApp CenterCI/CDCrashlyticsDetoxMaestroFlipperSentryBitriseGitHub Actions

Storage & Database

SQLiteRealmWatermelonDBCloud FirestoreAsync StorageSecure StorageMMKVIndexedDB

Native Modules

CameraBiometricsNFCBluetoothLocation ServicesIn-App PurchasesApple PayGoogle PayDeep LinkingApp ClipsWidgets

Our Process

From idea to App Store in 8-12 weeks.

01

Discovery

Understanding your app idea, target users, and business goals

02

UI/UX Design

Creating intuitive interfaces with platform-specific patterns

03

Development

Building your app with weekly demos and continuous feedback

04

Testing

Testing on real devices across iOS and Android versions

05

Launch

App Store and Play Store submission with optimization

Ready to Launch Your Mobile App?

Tell us about your app idea. We'll help you choose between React Native and Flutter based on your specific needs.