Flutter App Development Services
One Flutter codebase for iOS, Android and beyond.
Flutter app development services cover building apps with Google's Flutter framework, which uses one Dart codebase to produce iOS and Android apps, and can also target web and desktop. NetOfficials builds Flutter apps from a written scope you approve to release on both stores. For a team that already works in React, see our React Native app development services.
- Building software since
- 2011
- Approved before the build
- Written scope
- Tracked in Jira
- Sprint demos
- Confirmed in the contract
- Your IP
What Is Included in Our Flutter App Development Services
The parts of a Flutter project that make one codebase behave well on every platform it targets.
Shared Dart Codebase
Business logic and screens written once and used on both iOS and Android.
Custom Widget Design
A branded interface drawn by Flutter itself, so it looks the same on every device.
State Management
A clear structure for app data, chosen to suit the size of your product.
Native Plugins and Bridges
Platform code in Swift or Kotlin where a feature needs it, such as a payment SDK.
Performance Profiling
Checks for smooth animation and quick start-up, using Flutter's own tooling.
Release to Both Stores
Signing, store listings and release pipelines for the App Store and Google Play.
Who Our Flutter App Development Services Suit
Flutter fits some projects better than others. These are the three we see most.
-
Startups and product teams
Ship on both platforms together
Reach iPhone and Android users with one team and one plan.
- Discovery and a written scope
- Single codebase for both stores
- Fixed-scope project delivery
-
Brands with a distinctive interface
Keep one look everywhere
Build a custom design system that appears the same on every device and screen size.
- Reusable widget library
- Animation and branded motion
- Design handover to your team
-
Teams with two separate apps
Merge into one codebase
Replace separate iOS and Android apps with a single Flutter app, in stages.
- Audit of both existing apps
- Screen by screen migration
- Dedicated team for the move
Flutter or Two Native Apps?
Flutter saves effort by sharing code, while native apps give each platform full access and feel. The right call depends on your product. We give you an honest recommendation in discovery.
Flutter is usually the better choice when
- You need iOS and Android at the same time
- Your design is custom and not tied to platform style
- Your team is small
- Most features are screens, forms and API data
| Consideration | Flutter | Two native apps |
|---|---|---|
| Code to maintain | One shared codebase | Two separate codebases |
| Interface | Identical on both platforms | Follows each platform's own style |
| New platform features | Wait for plugin or write bridge code | Available on day one |
| Heavy device features | Possible, with native bridges | Direct access |
| Team skills needed | Dart developers | Swift and Kotlin developers |
| Best for | Custom-designed apps for both platforms | Apps tied deeply to one platform's hardware |
How We Deliver Your Flutter App
Every project moves from a written scope to agreed review points, so you always know what is happening and what comes next.
Discovery
Target platforms, features, native needs and integrations, written into a scope you approve.
Signed scopeDesign System
Colours, type and reusable widgets agreed once, then applied across every screen.
Approved design systemBuild
Shared features built in sprints, with a running app on both platforms at each demo.
Builds on iOS and AndroidPlatform Polish
Fixes for scrolling, permissions and behaviour that differs between iOS and Android.
Both platforms testedRelease and Evolve
Store submission for both platforms and updates as Flutter and the OS versions move on.
Live on both stores
What Affects the Cost of Flutter App Development
We do not quote from a price list, because two Flutter apps rarely share a scope. A few choices decide most of the cost, and we agree them with you in discovery.
Platforms targeted
iOS and Android share most code, and adding web or desktop brings extra layout and testing.
Native plugin needs
A feature without a good Flutter plugin needs custom Swift and Kotlin code.
Custom interface and animation
Rich animation and a fully custom design system take more effort than stock components.
State and data complexity
Larger apps with offline data and many screens need a stronger state structure.
Migration from existing apps
Moving two native apps into Flutter adds audit and parity testing work.
Performance targets
Smooth scrolling on lower-end devices needs profiling and tuning.
Why Choose NetOfficials for Flutter App Development
The working terms below are part of every engagement, not extras.
One Cross-Functional Team
Design, development, testing and DevOps run through a single team, so decisions stay connected.
Senior From Day One
The senior engineer who scopes your work stays involved while it is delivered.
You Own Everything
IP assignment is confirmed in the contract, and you receive the full source code and documentation at handover.
Mutual NDA
We sign a mutual NDA before you share the details of your project.
Your Working Hours
We agree a communication window that suits your time zone at the start.
Visible Progress
Work is tracked in Jira, with a demo and your feedback at the end of every sprint.
How We Choose the Right Stack for Your Flutter App
We recommend technology for your project and your team's future, not for our convenience. Three questions guide every choice.
Will it handle your load?
We size the design for your expected users, data and growth, so it does not need rebuilding when the business grows.
Will it fit your systems?
We check how the stack connects with the tools, databases and partners you already rely on before we commit to it.
Can you support it later?
We favour well-supported technology with a wide talent pool, so your own team or any future partner can maintain it.
Technologies we work with
Flutter
Kotlin
Swift
Node.js
Python
Go
.NET
GraphQL
PostgreSQL
MongoDB
Google Cloud
AWS
Azure
DockerFlexible Ways to Work With Us
Pick the model that fits where your project is today. You can move between them as it grows.
Project Delivery
We deliver an agreed scope, timeline and price.
- Written discovery scope
- Milestone reviews
- Best for a clear first release
- For ongoing work
Dedicated Team
A team that works only on your project, led by a named delivery lead.
- Cross-functional team
- Sprint demos and planning in Jira
- Scale the team up or down
Team Extension
Specialists who join your existing team, tools and processes.
- Works in your process and tools
- Agreed overlap hours
- Best for adding a missing skill
More From Our Mobile App Development Practice
This service is part of our mobile app development practice. These pages cover the services most often needed alongside it.
Flutter App Development FAQs
What is Flutter?
Flutter is Google's open source framework for building apps from one codebase, written in the Dart language. It draws its own interface, so screens look the same on iOS and Android.
Is Flutter good for business apps?
Yes, for many of them. It suits apps built around screens, forms and data from an API, and we tell you in discovery if your product needs more native work.
Can a Flutter app use the camera, Bluetooth and other phone features?
Yes, through plugins or small pieces of native code. We check in discovery which features need custom bridges, since they affect scope.
Does Flutter feel native on iPhone?
Flutter draws its own widgets, so it can match iOS styling or use a single custom design. We agree which approach you want during design.
Who owns the code and IP?
You do. We confirm IP assignment in the contract first, and you receive the full Flutter source code and documentation at handover.
Can you add Flutter to an app I already have?
Yes. Flutter screens can be embedded in an existing native app, which lets you move across gradually. We plan this in a written scope first.
Ready to Build Your Flutter App?
Share a few details. A senior engineer reads every brief and replies with questions and a suggested next step.
- We review your briefAnd reply with questions
- We sign a mutual NDABefore you share the details
- You get a written scopeTeam, timeline and model, before any commitment