Typical Flutter app development cost
Because a Flutter app ships to iOS and Android from one codebase, its cost tiers line up with a single-platform native app plus a modest premium for platform testing and two store releases.
| Tier | Typical scope | Flutter (both platforms) | Two native apps, same scope |
|---|---|---|---|
| Simple | Content, booking or catalog app with sign-in, push and a light backend | $30,000–$70,000 | $40,000–$100,000 |
| Mid-complexity | Subscriptions, custom backend, offline caching, analytics, admin panel | $70,000–$170,000 | $95,000–$250,000 |
| Complex | Real-time features, hardware integrations, regulated data, multiple user roles | $170,000–$400,000+ | $240,000–$600,000+ |
These are planning ranges, not quotes. The gap between columns is widest for UI-heavy apps and narrowest for apps dominated by native integrations.
Where a single codebase saves money
- UI built once. Screens, navigation, forms and animations are written in Dart and render the same on both platforms.
- Shared business logic. Validation, state management, API clients and caching live in one place.
- One design system. Designers produce one component library instead of two platform variants.
- Smaller team. Two Flutter engineers can often cover what would otherwise take an iOS and an Android specialist each.
- Single upgrade path. Framework and dependency upgrades happen once, not twice.
Our Flutter development services are set up to protect these savings with a shared component library and automated tests that run against both platforms in CI.
Where Flutter savings disappear
Flutter does not remove the operating system. Whenever an app reaches below the UI layer, someone writes or configures Swift and Kotlin code through platform channels or plugins, and those parts cost about what they would in a native project.
| Area | Why savings shrink | Typical added cost |
|---|---|---|
| Bluetooth, NFC or custom hardware | Plugins rarely cover every device; native code per platform is common | $10,000–$35,000 |
| Background location and tasks | iOS and Android background rules differ sharply | $8,000–$20,000 |
| Home screen widgets, Watch and Wear apps | Built natively with WidgetKit, SwiftUI or Glance | $5,000–$40,000 |
| Platform-faithful UI | Matching Cupertino and Material conventions means two variants of some screens | $5,000–$20,000 |
| Abandoned or weak plugins | Forking or replacing a package with native code | $2,000–$10,000 each |
If more than about a third of your scope lives in these areas, the cost advantage narrows to the low end of the range. For a side-by-side with the other main cross-platform option, read how Flutter compares with React Native.
Feature costs in a Flutter app
For standard product features, Flutter's advantage shows up as one implementation instead of two. The table compares typical incremental costs for a Flutter app shipping to both stores with the combined cost of building the same feature in two native apps.
| Feature | Flutter (iOS + Android) | Two native apps | How much is shared |
|---|---|---|---|
| Sign-in with email and social providers | $3,500–$10,000 | $5,000–$15,000 | Most; Apple and Google sign-in need platform setup |
| Push notifications with deep links | $2,500–$7,000 | $3,500–$10,000 | Most; APNs and FCM configuration differs |
| Subscriptions and in-app purchases | $6,000–$16,000 | $8,000–$22,000 | Partial; store rules and testing are per platform |
| Offline mode and sync | $9,000–$26,000 | $13,000–$38,000 | Nearly all; logic lives in Dart |
| In-app chat | $11,000–$32,000 | $16,000–$48,000 | Nearly all, apart from notification handling |
| Bluetooth device integration | $10,000–$35,000 | $12,000–$40,000 | Little; native code on each side |
The pattern is consistent: the more a feature is about screens and business logic, the more Flutter saves. The closer it sits to device hardware, the more it behaves like a native project.
Two example Flutter budgets
- Appointment booking app for a clinic group: patient sign-in, scheduling, reminders, secure messaging and an admin panel. Typically $80,000–$140,000; almost all of the client work is shared, so savings sit near the top of the 25–40% range.
- Asset tracking app with BLE tags: tag pairing, background scanning, map view and offline logs. Typically $140,000–$240,000; much of the scope runs through native Bluetooth and background code, so savings fall toward the low end.
Team, phases and timeline for a Flutter build
| Phase | Duration | Share of budget |
|---|---|---|
| Discovery and plugin audit | 2–3 weeks | 5–10% |
| UX and UI design (one system, platform adjustments) | 3–5 weeks | 10–15% |
| Flutter and backend engineering | 10–16 weeks | 50–60% |
| QA on iOS and Android devices | 3–4 weeks, overlapping | 15–20% |
| Release to both stores, PM and DevOps | 1–2 weeks | 10–15% |
A typical team pairs two Flutter engineers with a backend engineer, a designer, a QA engineer and a part-time product manager. US agency rates for Flutter engineers usually fall between $110 and $190 per hour, similar to native mobile specialists; the saving comes from needing fewer client engineers, not cheaper ones. Our Flutter and Dart engineering approach explains how we structure state management and native modules.
Ongoing costs for Flutter apps
- Maintenance: typically 15–20% of the build cost per year, often toward the lower end thanks to one codebase.
- Flutter SDK upgrades several times a year, plus dependency updates for plugins.
- Apple Developer Program at $99 per year and Google Play at $25 one-time, since you still publish to both stores.
- Annual iOS and Android OS changes that affect native modules and permissions.
- Hosting and third-party services on the same scale as any mobile backend.
The single-codebase advantage compounds over time. A bug fixed in Dart is fixed on both platforms, a new screen is designed and tested once, and a framework upgrade is one piece of work rather than two. The exception is native modules: each one needs attention when Apple or Google change platform rules, so keeping their number small is one of the most effective ways to control long-term Flutter cost.
Hidden costs with Flutter
- Larger app download size than a minimal native app, which can matter in markets with slow networks.
- Accessibility work to make custom-drawn widgets behave well with VoiceOver and TalkBack.
- Platform-specific crashes that only show up in native layers and need native debugging skills.
- Hiring or retaining Dart expertise if you plan to bring the codebase in-house later.
Getting the most from a Flutter budget
- Audit every needed plugin during discovery; choose well-maintained packages or budget native code up front.
- Use one design system with small platform adaptations rather than two fully separate visual languages.
- Keep native code in thin, well-tested modules so most changes stay in Dart.
- Automate builds and store uploads for both platforms from day one.
If you are still deciding between Flutter and native, our native-versus-cross-platform cost comparison lays out the full set of options.
How we estimate a Flutter project
In discovery we separate the scope into shared Dart work and platform-specific work, then estimate each. That split makes the range honest: you can see exactly how much of the budget benefits from a single codebase.
We offer fixed price for well-defined scopes and time and materials for evolving products, both described in our engagement models. Send us your feature list to receive a Flutter cost range.