Flutter App Development
Statista reports Flutter is used by 42% of developers worldwide, making it the most popular cross-platform framework. App369 builds production-ready Flutter apps from a single Dart codebase for iOS, Android, and web — reducing development costs by 30-40% compared to separate native builds.
Flutter Development Services
Cross-Platform App Development
Build one Flutter codebase that deploys to iOS, Android, and web. According to Statista, Flutter is used by 42% of cross-platform developers worldwide, delivering near-native 60fps performance from a single Dart codebase — saving 30-40% compared to separate native builds.
Widget-Based UI Development
Flutter's composable widget system enables pixel-perfect, brand-consistent interfaces across platforms. We build custom widget libraries, complex animations, and adaptive layouts that follow Material Design 3 and Cupertino guidelines simultaneously.
Firebase Integration
Full backend integration with Firebase including Firestore real-time database, Authentication, Cloud Functions, Cloud Messaging for push notifications, and Crashlytics for monitoring. Firebase powers over 3 million apps according to Google.
State Management & Architecture
Scalable app architecture using Riverpod or BLoC patterns with clean architecture principles. Our approach ensures testable, maintainable code that scales from MVP to enterprise without requiring rewrites.
Custom Animations & Motion Design
Flutter's Skia rendering engine enables smooth 60fps animations and transitions. We build custom implicit and explicit animations, hero transitions, and micro-interactions that elevate user experience beyond what standard native development offers.
Plugin & Package Development
When existing packages don't meet requirements, we build custom Flutter plugins using platform channels to access native iOS and Android APIs directly. Our plugins integrate with device hardware including cameras, Bluetooth, NFC, and biometric sensors.
Our Process
Discovery & Requirements
We analyze your business goals, target platforms, and feature requirements to define the Flutter project architecture, select the right state management approach, and create a detailed development roadmap.
UI/UX Design & Prototyping
Our designers create platform-adaptive interfaces in Figma that follow both Material Design 3 and Cupertino guidelines, validated through interactive prototypes and user testing.
Flutter Development
Our Flutter developers build your app using clean architecture patterns, custom widget libraries, and Firebase integration. We implement CI/CD pipelines from day one for continuous delivery.
Testing & Quality Assurance
Comprehensive testing including unit tests, widget tests, and integration tests using Flutter's built-in testing framework. We test across multiple device sizes and OS versions.
App Store Deployment
We handle submission to both Apple App Store and Google Play Store from the single Flutter codebase, configure beta testing tracks, and optimize store listings for ASO.
Maintenance & Iteration
Ongoing support including Flutter SDK upgrades, dependency updates, performance monitoring via Firebase Crashlytics, bug fixes, and feature iterations based on user analytics.
Frequently Asked Questions
How much does a Flutter app cost?
According to Clutch's 2024 App Development Survey, a Flutter app typically costs between $20,000 and $120,000 depending on complexity. Simple Flutter apps with core features run $15,000-$40,000, while medium-complexity apps with Firebase backend, authentication, and real-time features cost $40,000-$80,000. Enterprise-grade Flutter applications with custom plugins and microservices can exceed $100,000. Flutter reduces total cost by 30-40% compared to building separate native iOS and Android apps because teams maintain a single Dart codebase.
Flutter vs React Native: which is better?
According to the 2024 Stack Overflow Developer Survey, Flutter has surpassed React Native in developer adoption. Flutter compiles to native ARM code and renders at 60fps using its own Skia engine, while React Native relies on a JavaScript bridge. Flutter offers a richer widget library, hot reload for faster development, and consistent UI across platforms. App369 chose Flutter for its superior performance, single-codebase efficiency, and growing ecosystem.
How long does it take to build a Flutter app?
According to GoodFirms research, cross-platform Flutter apps take 2-6 months to build depending on complexity. Simple apps with basic CRUD operations take 6-10 weeks, medium-complexity apps with real-time features and payment integration require 3-5 months, and enterprise applications with complex business logic take 5-9 months. Flutter's hot reload feature and single codebase reduce development time by 30-40% compared to building separate native apps.
Is Flutter suitable for enterprise applications?
Yes. According to Flutter's official showcase, enterprise companies including Google, BMW, Toyota, Alibaba, and eBay use Flutter in production. Flutter supports advanced enterprise requirements including biometric authentication, offline-first architecture with local databases, CI/CD pipeline integration, automated testing suites, and HIPAA-compliant data handling. Its compiled native code delivers performance comparable to Swift and Kotlin apps.
Does Flutter support web and desktop apps?
Yes. According to Google's Flutter documentation, Flutter supports stable web, Windows, macOS, and Linux targets from a single codebase. Flutter web compiles Dart to JavaScript and uses either HTML/CSS or CanvasKit rendering. Flutter desktop apps compile to native executables. This means a single Flutter project can target iOS, Android, web, Windows, macOS, and Linux — the most versatile cross-platform framework available.
Can Flutter apps access native device features?
Yes. Flutter provides platform channels that enable direct communication with native iOS (Swift/Objective-C) and Android (Kotlin/Java) code. According to pub.dev, over 30,000 packages are available for Flutter, covering camera access, GPS, Bluetooth, biometrics, push notifications, NFC, and more. For features without existing packages, App369 builds custom platform channel plugins that call native APIs directly.
Build Once, Deploy Everywhere
Flutter powers apps for companies like Google, BMW, and Toyota. Whether you need a startup MVP or a full-scale mobile application, get a free consultation and detailed estimate within 2 business hours.