Cross-Platform Mobile Apps With Native Performance
One codebase for iOS and Android, built by senior Flutter app developers in Sydney, with near-native performance and no second codebase to maintain.
What does Flutter Mobile Apps involve?
Flutter app development is the building of iOS and Android applications from a single Dart codebase that compiles to native machine code and renders through its own graphics engine, giving near-native performance without maintaining two separate native codebases.
Flutter's proposition is compelling: a single Dart codebase that compiles to native ARM code on iOS and Android, renders via its own Skia/Impeller graphics engine rather than platform WebViews, and ships UI that is visually indistinguishable from native development. The practical result is that enterprises no longer have to choose between maintaining two separate codebases, and paying for two separate development teams, or accepting the sluggishness of hybrid frameworks that were never intended for production-grade mobile. Flutter is Google's fastest-growing UI framework and now powers applications at BMW, eBay, and the New York Times.
We are a Sydney company working on AEST hours, and our Flutter work covers the full lifecycle: state management architecture with Riverpod or BLoC, custom animations and gesture handling, native platform APIs via platform channels, App Store and Google Play submission, and performance profiling with Flutter DevTools. Senior engineers lead every build, so the edge cases that trip up teams new to the framework are planned for rather than discovered late.
All Webbed Labs is a Sydney based enterprise AI and software development company. Sister company to All Webbed Up, the branding and marketing agency we deliver client work alongside.
Why choose All Webbed Labs for Flutter Mobile Apps?
One Codebase, Two Platforms
Maintaining separate iOS and Android codebases typically doubles mobile engineering cost. Flutter's single Dart codebase shares business logic, state management, navigation, and the majority of UI across both platforms, which usually reduces mobile development cost substantially compared to parallel native development.
60fps Rendering on Real Hardware
Flutter bypasses the platform's native UI layer entirely, rendering to a canvas via the Impeller engine. This eliminates the performance overhead that plagues React Native bridge-based architectures. The result is consistent 60fps (and 120fps on ProMotion devices) even for complex, animated interfaces.
Hot Reload Accelerates Delivery
Flutter's hot reload injects code changes into the running VM in under a second without losing application state. This compresses the iteration cycle during development dramatically, UI refinements that would take 30-second build cycles in native development happen in milliseconds, which compounds across a project into significantly faster delivery.
Faster Time to Market
Shipping to both App Store and Google Play from a single codebase, with a single QA cycle covering both platforms, compresses release timelines materially compared to running two separate native teams, the QA work, the regression suite, the build pipelines and the platform-specific UI debt all collapse into one workflow.
Native Platform Integration
Flutter's platform channels provide direct, type-safe access to native iOS (Swift/Obj-C) and Android (Kotlin/Java) APIs. We use this for biometric authentication via Face ID and Fingerprint, Bluetooth LE device pairing, push notifications via APNs and FCM, camera with ML Kit processing, and platform-specific payment flows including Apple Pay and Google Pay.
Web & Desktop From the Same Codebase
Flutter's multi-platform targets mean the same codebase can render to web and desktop (macOS, Windows, Linux) with platform-appropriate UI adaptations. For organisations deploying internal tools across both mobile field workers and desktop office staff, Flutter eliminates the need for entirely separate frontend codebases.
What technologies does All Webbed Labs use for Flutter Mobile Apps?
What does the Flutter Mobile Apps process look like?
Platform Strategy & Architecture
We define the platform target matrix (iOS, Android, web, desktop), minimum OS versions, offline requirements, and native integration points. State management architecture, Riverpod, BLoC, or a hybrid, is selected based on team ownership preferences and application complexity.
Design System in Flutter
We translate your design system into Flutter widget code: custom themes, typography scales, spacing tokens, motion curves and platform-adaptive components. Building the design system first ensures visual consistency throughout development and dramatically accelerates screen assembly.
Core Architecture Build
Navigation structure (GoRouter), API client layer with caching and retry logic, local persistence via Drift or Isar, authentication flows, and platform channel integrations are established. Offline-first data sync patterns are designed and prototyped before feature development begins.
Feature Development Sprints
Two-week sprints delivering tested screens and features. Each sprint includes widget tests for UI components, unit tests for business logic, and integration tests for critical user flows. Performance profiling with Flutter DevTools is conducted at every sprint review.
Device Testing & Store Compliance
Physical device testing on a matrix of iOS and Android hardware including older devices at your minimum OS version. App Store and Play Store submission preparation: metadata, screenshots, privacy manifests, App Tracking Transparency declarations, and review guideline compliance checks.
Release & Post-Launch Monitoring
Staged rollout via TestFlight and Play Store internal track, then phased percentage rollout to catch regressions at scale. Firebase Crashlytics and Performance Monitoring are active from the first build. We remain on standby for rapid hotfix releases during the initial rollout window.
Who is Flutter Mobile Apps for?
Is Flutter Mobile Apps the right solution for you?
When Flutter Mobile Apps is the right fit
- You need iOS and Android apps with shared business logic and a single QA cycle, rather than funding two parallel native teams.
- Your interface relies on custom animations, branded UI and pixel-consistent presentation across both platforms.
- You want a faster path to launching on both stores from one codebase without sacrificing 60fps performance.
- You have field or customer apps that benefit from offline-first behaviour and clean native integrations (camera, BLE, biometrics).
- You may later extend the same codebase to web or desktop for internal tooling.
When it is not the right fit
- You only need one platform (e.g. iOS-only) and the app makes heavy use of the latest platform-specific APIs, fully native may serve you better.
- Your existing team has deep React expertise and no time to learn Dart; React Native may have a lower onboarding cost.
- The product is genuinely just a wrapper around a website, a progressive web app or responsive site could be sufficient and cheaper.
- You need bleeding-edge access to a brand-new OS feature on launch day, where native SDKs are available before Flutter plugins.
- The app is a throwaway prototype where store distribution and performance do not matter.
Flutter Mobile Apps: a quick glossary
- Cross-platform development
- Writing one codebase that runs on both iOS and Android, rather than building and maintaining a separate app for each operating system.
- Dart
- The programming language Flutter uses; it compiles to native machine code for fast performance and is generally approachable for experienced developers within a few weeks.
- Platform channel
- Flutter's mechanism for calling native iOS (Swift) or Android (Kotlin) code, used to access hardware features like biometrics, Bluetooth or platform payment flows.
- Hot reload
- A development feature that applies code changes to a running app in under a second without losing its current state, dramatically speeding up UI iteration.
- Offline-first architecture
- Designing an app to work fully without connectivity by storing data locally and syncing changes back to the server when a connection returns.
- Impeller engine
- Flutter's graphics rendering engine that draws the interface directly to a canvas, enabling consistent smooth performance independent of the platform's native UI layer.
Common questions about Flutter Mobile Apps
Flutter reached stable 1.0 in December 2018 and has been used in production by enterprises including BMW, eBay, and Alibaba for several years. The framework is backed by Google, has a well-funded core team, and is one of the most starred repositories on GitHub. The ecosystem of packages on pub.dev has matured significantly, the major concerns about missing packages that existed in 2019 are no longer relevant for the functionality required by most enterprise applications. Upgrades between Flutter versions are well documented, with migration guides for breaking changes.
The primary technical difference is the rendering model: Flutter renders to its own canvas via the Impeller graphics engine, while React Native renders to platform-native widgets via a JavaScript bridge (or JSI in the new architecture). This gives Flutter more predictable, consistent performance across devices and significantly better support for complex custom animations. React Native's advantage is that JavaScript developers can be productive without learning Dart. For most enterprise applications, Flutter's superior performance profile and visual consistency win out, unless your existing engineering team has deep React expertise and limited time for onboarding onto Dart.
Apple and Google both release SDK updates and policy changes periodically that require application updates. Apple's annual requirement to update to the latest iOS SDK typically means one or two maintenance releases per year purely for compliance. Google Play's target API level policy similarly requires annual updates. We recommend clients budget for at least two maintenance releases per year beyond feature development, and we offer retainer packages that cover this with a guaranteed response SLA. We also handle App Store and Play Store listing management, including metadata updates and responding to user reviews for clients who prefer to outsource this.
Yes, via Flutter's platform channels, which allow the Dart layer to invoke native Swift or Kotlin code with type-safe data passing. The pub.dev ecosystem provides battle-tested packages for most hardware integrations: camera, BLE via flutter_blue_plus, biometrics via local_auth, NFC, GPS, push notifications, barcode scanning, and more. For custom hardware integrations not covered by existing packages, we write native platform channel plugins in Swift and Kotlin, for example to talk to proprietary Bluetooth devices or vendor SDKs. The integration point is clean and does not compromise performance of the rest of the application.
Offline-first architecture in Flutter involves local database storage (we use Drift, which is a type-safe SQLite wrapper), a synchronisation layer that queues mutations when offline and replays them on reconnect, conflict resolution strategy for cases where data changes on both client and server while disconnected, and a connectivity observer that adapts the UI to accurately reflect the sync state. We design the sync architecture at project start, not as a bolt-on feature, because offline-first data models are fundamentally different from always-connected ones.
You own the code completely. Every Flutter project we deliver includes documented architecture decisions, widget documentation, a developer onboarding guide, and an explanation of state management patterns used. We encourage clients to have at least one internal developer involved during the latter stages of development so knowledge transfer is gradual rather than a single handover event. Dart is a well-designed language that most experienced developers find approachable within a few weeks, the learning curve is far more manageable than the transition from React Native to native development. We also offer Dart and Flutter training workshops for internal teams as a separate engagement.
It depends on the number of screens and user roles, the backend and integrations required, offline and hardware features, and design complexity. Because one Flutter codebase serves both iOS and Android, it usually costs less than building two native apps. We quote a fixed price after a paid discovery; our app development cost guide covers typical Australian market ranges.
Yes. Flutter supports web, Windows, macOS and Linux as well as iOS and Android. It is strongest for app-like experiences such as dashboards and internal tools; for content-heavy public websites where search ranking matters, a web framework like Next.js is usually the better fit.