Mobile apps
Hire Flutter developers for beautiful apps on iOS, Android, web and desktop
Dware's senior Flutter developers build fast, polished apps in Dart from one codebase that runs on phones, tablets, the web and desktop. We design custom UI that looks right on every screen, wire it to Firebase or your own backend, and take it through App Store and Google Play review. You get a clean, tested codebase your team can grow.
- One Dart codebase for iOS, Android, web and desktop
- Pixel-perfect custom UI with tested, reusable widgets
- Riverpod or Bloc architecture that scales with your team
Overview
What Flutter developers do and why Flutter works
Flutter is Google's open-source UI toolkit. You write the app once in Dart, and Flutter compiles it to native ARM code for iPhone and Android, to JavaScript or WebAssembly for the browser, and to desktop apps for Windows, macOS and Linux. Unlike most cross-platform tools, Flutter draws every pixel itself with its own rendering engine, Impeller. That means your app looks and behaves the same on a three-year-old Android phone and a new iPhone, and your designers get exactly what they drew.
Everything in Flutter is a widget, from a button to a whole screen. Our Flutter developers build a library of your own widgets, such as cards, form fields and charts, that match your brand and are reused across the app. Flutter ships with Material 3 and Cupertino widgets, so the app can follow iOS and Android conventions where users expect them, and break from them where your brand needs something unique. Hot reload shows code changes in a second, which makes design iteration fast.
A good Flutter app needs more than nice screens. It needs a clear state management approach, usually Riverpod or Bloc, so data flows predictably as the app grows. It needs platform channels when it must call native iOS or Android code, a sensible backend such as Firebase, and a test suite with widget and golden tests that catch UI regressions. Our developers set this foundation in the first sprint, so feature number fifty is as easy to add as feature number five.
Flutter is a strong choice for startups that want one team for every platform, for brands that want a distinctive custom UI, and for internal tools that must run on mobile and desktop. It is a weaker fit for content-heavy marketing websites that need strong SEO, where a normal web framework is better. We will tell you honestly whether Flutter suits your product.
What we build
Flutter app development services
From a first MVP to a multi-platform product, these are the Flutter services we offer.
Flutter MVPs for startups
We take a focused feature set to both app stores quickly, with a clean architecture that will not need a rewrite when you raise or grow. Firebase often speeds up the first release, with a path to your own backend later.
Custom UI and animation
We turn your Figma designs into reusable widgets with a shared theme, custom painters for charts and shapes, and smooth implicit and explicit animations. Rive or Lottie animations are added where motion helps the story.
Flutter for web and desktop
We extend your mobile app to the browser and to Windows, macOS or Linux with adaptive layouts for large screens, keyboard shortcuts and mouse input. This suits dashboards, internal tools and companion apps.
Firebase and backend integration
We set up FlutterFire with Authentication, Firestore, Cloud Storage, Cloud Functions, Remote Config and App Check. If you have your own REST or GraphQL API, we build a typed client with dio and generated models.
Platform channels and native plugins
When a feature needs native iOS or Android code, we write it in Swift and Kotlin and connect it with type-safe Pigeon channels. We can package it as a reusable plugin for your other apps.
State management refactoring
We untangle apps where logic lives inside widgets, setState is everywhere or several state libraries compete. We move the app step by step to Riverpod or Bloc, with tests that prove behaviour did not change.
Flutter upgrades and audits
We upgrade old Flutter and Dart versions, migrate to null safety and Dart 3, replace unmaintained packages and fix build issues with newer Xcode and Android Gradle versions. You get a written audit before we start.
Release and maintenance
We automate builds with Codemagic, Fastlane or GitHub Actions, manage TestFlight and Google Play tracks, and keep the app current with every Flutter release and new iOS and Android version.
Our process
How our Flutter developers build your app, step by step
Here is how a Flutter project runs at Dware, with the Flutter-specific work at each step.
- 1
Discovery and platform scope
We learn your goals and users, then agree which platforms launch first and which come later. Because Flutter can target mobile, web and desktop, we decide early so the layout and navigation are planned for every screen size you need. We check every required device feature against pub.dev packages and flag anything that needs a custom platform channel.
What you get
- Prioritised feature list
- Platform and package plan
- Fixed quote and timeline
- 2
Design system and UI
Our designers work in Figma with tokens for colours, typography, spacing and radius that map one-to-one into a Flutter ThemeData and theme extensions. We design custom components once and reuse them, and decide where iOS users should see Cupertino-style behaviour, such as swipe-back navigation. Every screen covers loading, empty and error states, plus large text and dark mode.
What you get
- Figma prototype
- Design tokens and component list
- Adaptive layout rules
- 3
Architecture
We split the code into layers: UI widgets, state with Riverpod or Bloc, and repositories that talk to Firebase or your API. Models are immutable and generated with freezed and json_serializable, routing uses go_router with deep links, and local data uses drift or SQLite for offline support. Flavors give you separate development, staging and production apps on the same phone.
What you get
- Project skeleton with flavors
- Architecture notes
- CI pipeline
- 4
Building features in sprints
We build in two-week sprints, using hot reload to iterate on UI with you in short review sessions. Every pull request runs dart analyze with strict lints, formatting checks and tests in CI, then gets a senior code review. At the end of each sprint you install the latest build on your own device and can comment on real features.
What you get
- Installable build each sprint
- Reviewed code in your repository
- Sprint demo
- 5
Testing on real devices
Flutter has three layers of tests and we use all of them: unit tests for logic, widget tests for components and screens, and integration tests with integration_test or Patrol, which can also tap native permission dialogs. Golden tests compare screenshots of key widgets so visual regressions are caught automatically. We then test profile and release builds on real iPhones and Android phones, including older models, and check frame times in Flutter DevTools.
What you get
- Unit, widget and golden tests
- Integration test flows
- Device and performance report
- 6
TestFlight and Google Play testing
We build with flutter build ipa and flutter build appbundle, with obfuscation and debug symbols uploaded to Crashlytics or Sentry so crash reports stay readable. Builds go to TestFlight for iOS testers and to Google Play internal and closed testing tracks. Newer personal Google Play accounts need a closed test with at least 12 testers for 14 days, and we plan that into the timeline.
What you get
- TestFlight and Play test builds
- Crash reporting with symbols
- Beta feedback fixes
- 7
Store release and web or desktop deployment
We prepare store listings, screenshots for each device size, Apple privacy labels and Google's Data safety form, then submit and handle review feedback. Releases go out with phased rollout on iOS and staged rollout on Google Play. If your app has a web version, we deploy it to your hosting with the WebAssembly build where supported; desktop builds are signed and notarised for macOS and packaged for Windows.
What you get
- Approved store releases
- Web or desktop deployment
- Release checklist
- 8
Updates and support
After launch we watch Crashlytics, analytics and reviews, and ship improvements on a steady schedule. Flutter releases stable versions several times a year, and we keep your app current so you get performance and platform fixes. Remote Config lets you switch features on and off without a release, and Shorebird code push can deliver Dart fixes quickly when that suits your app.
What you get
- Regular releases
- Flutter and OS upgrades
- Post-launch support
Want this process for your project? Tell us what you're building and get a free, fixed quote.
Get a free quoteTechnical expertise
Flutter development done right
These are the technical areas that decide whether a Flutter app stays fast and easy to change.
State management with Riverpod or Bloc
Riverpod suits most apps: providers are type-safe, easy to test and handle loading and error states well. Bloc suits large teams that want strict, event-driven flows and a clear audit of every state change. We pick one and use it consistently. Business logic never lives inside widgets, so it can be tested without rendering anything.
Smooth rendering and performance
Flutter aims for a smooth frame rate, and jank usually comes from rebuilding too much. We use const constructors, split large widgets, build long lists lazily with ListView.builder or slivers, and wrap heavy painting in RepaintBoundary. Expensive work like JSON parsing of big payloads runs in a background isolate. We confirm results in DevTools in profile mode, never in debug mode.
Platform channels and native code
Flutter talks to native code through platform channels. We use Pigeon to generate type-safe Dart, Swift and Kotlin interfaces instead of passing untyped maps, and dart:ffi when a C library is the better fit. Native code stays small and well-tested, and the rest of the app sees a clean Dart API.
Firebase in production
Firebase speeds up Flutter apps, but it needs care. We write and test Firestore security rules, structure data so reads stay cheap, enable App Check to block abuse, and put sensitive logic in Cloud Functions. Analytics events and Crashlytics are set up from the first build.
Accessibility and adaptive layouts
Because Flutter draws its own UI, accessibility needs attention. We add Semantics labels, test with VoiceOver and TalkBack, support large text without broken layouts, and keep tap targets big enough. Layouts use breakpoints so the same app works on phones, tablets, foldables and desktop windows.
Skills and tools our Flutter developers use
Core
- Flutter
- Dart 3
- Material 3 and Cupertino widgets
- go_router
- Impeller
State and data
- Riverpod
- Bloc and Cubit
- freezed and json_serializable
- dio
- drift and SQLite
- flutter_secure_storage
Firebase and native
- FlutterFire
- Firestore and Cloud Functions
- Firebase Cloud Messaging
- Remote Config and App Check
- Pigeon platform channels
- Swift and Kotlin
Testing and quality
- flutter_test widget tests
- Golden tests
- integration_test and Patrol
- Flutter DevTools
- Crashlytics and Sentry
Build and release
- Codemagic
- Fastlane
- GitHub Actions
- TestFlight and App Store Connect
- Google Play Console
- Shorebird
Why Dware
Why hire Flutter developers from Dware
Design-first Flutter engineers
Our Flutter developers care about the details: spacing, motion, typography and touch feedback. Your app looks like your Figma file on every device, not a rough approximation.
Architecture that lasts
We set up layers, state management, code generation and tests in the first sprint, so the codebase stays easy to change when your team or feature list grows.
One team for every platform
The same developers ship your iOS, Android, web and desktop apps, so features and fixes reach every platform together.
Your code, your accounts
Code lives in your repository, apps are published in your developer accounts, and you own all code and IP. NDA on request.
Flexible and low risk
You are matched with a Flutter developer in 48 hours, start with a two-week risk-free trial, and can scale up or down monthly as your roadmap changes.
Ways to work with us
Ways to hire Flutter developers
Hire one developer, add a whole team, or hand us a fixed-scope project. Tell us what you need and we'll send a free, fixed quote, usually within one business day.
Dedicated developer
Most popularA senior engineer who works only on your product, full-time or part-time.
- Joins your Slack, standups and Git
- Same developer every day
- Scale up or down monthly
Team extension
Two or more developers, plus QA or a tech lead, added to your team.
- Matched to your stack and time zone
- One point of contact
- Add or remove people any month
Fixed-scope project
A clear scope, timeline and fixed quote. Ideal for MVPs, apps and fixes.
- Free, fixed quote before we start
- Milestones you approve
- Support after launch
FAQ
Hire Flutter developers: frequently asked questions
Is Flutter a good choice for my app?
Flutter is a great fit if you want one codebase for iOS and Android, a custom branded design, and the option to add web or desktop later. It is used in production by many large companies. It is less ideal for SEO-heavy marketing websites or apps that must adopt brand-new platform UI the day it ships. We review your requirements and tell you honestly if another option fits better.
Flutter or React Native: which should we choose?
Both can ship excellent apps. Flutter draws its own UI, so it shines for custom designs that must look identical everywhere and for targeting desktop too. React Native uses native UI components and fits teams that already use React and want to share code with a React website. If you have no existing team, we compare both against your features and design and recommend one.
How much does it cost to hire Flutter developers?
Cost depends on scope: how many screens and features, which platforms you launch on, whether you use Firebase or need a custom backend, how complex the custom UI and animations are, and how fast you need to launch. Because Flutter targets several platforms from one codebase, you avoid paying for separate teams. After a short call we give you a free, fixed quote.
Can one Flutter codebase really run on web and desktop?
Yes. Web, Windows, macOS and Linux are all stable targets. Most business logic and many widgets are shared without changes. You still need adaptive layouts for big screens, mouse and keyboard support, and, on the web, attention to start-up size. Flutter web works best for app-like experiences such as dashboards and tools rather than content websites that rely on search traffic.
Do you use Riverpod or Bloc?
Both, depending on the project. For most new apps we choose Riverpod because it is concise, type-safe and easy to test. For large teams or apps with complex, event-driven flows, Bloc's strict structure is often better. If your existing app already uses one of them well, we keep it. What matters most is using one approach consistently.
Can Flutter use native iOS and Android features?
Yes. Thousands of packages on pub.dev cover common features like camera, maps, location, biometrics and payments. When no good package exists, we write the native code in Swift and Kotlin and connect it to Dart through platform channels, using Pigeon so the interface is type-safe. Your app gets full access to the platform.
Do you work with Firebase?
Yes, Firebase is a common pairing with Flutter. We set up projects with the FlutterFire CLI and use Authentication, Firestore, Storage, Cloud Functions, Cloud Messaging, Remote Config, Crashlytics and Analytics. We write and test security rules and use App Check, because a fast Firebase setup must still be a safe one.
How do you get a Flutter app through App Store review?
The rules are the same as for any app. We make sure permissions have clear purpose texts, account deletion works inside the app, digital goods use in-app purchase, and the privacy manifest and labels match what the app and its packages collect. We test on TestFlight first, then submit with reviewer notes and demo login details so the review goes smoothly.
Can you take over and improve our existing Flutter app?
Yes. We start with an audit of the Flutter and Dart versions, packages, architecture, tests and crash reports, and share a written list of priorities. Common fixes include moving logic out of widgets, adopting Riverpod or Bloc consistently, updating old packages and solving iOS or Android build failures. We improve the app step by step while you keep shipping.
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Learn moreTell us about your Flutter project
Book a free consultation with a senior Flutter developer. Share your idea, designs or existing app, and we will outline how we would build it and send a free, fixed quote.