One codebase, both platforms, and none of the compromise that usually implies. We build Flutter apps with native-like performance and interfaces designed for your brand rather than the framework’s defaults.
750+ happy clients, including top Fortune 500 companies
Overview
Smarter, Faster and Better Mobile Apps With Flutter
Flutter is a highly functional, feature-rich framework for next-generation native applications, and a genuine change for both developers and the companies they build for. As a top-tier Flutter development company, we bring the best of it to every screen.
Wave goodbye to maintaining separate codebases for each platform. Our Flutter services deliver one codebase
with native-like performance and the same considered UI on both iOS and Android.
Flutter App Development Services
Fast and Reliable Mobile Applications
Our Flutter services are built to scale and strengthen your business strategy. Our developers keep pace with the framework so we can build with speed, efficiency, and cost in mind.
Flutter app ideation & consultation
Our Flutter team advises on whether Flutter is the right call at all, validates new ideas or reviews an existing build, and gives you a considered view on app architecture, features, and stack integration.
Custom Flutter app development
B2B and B2C Flutter apps built to your business, versatile and well-designed, working properly across Android and iOS. We have delivered into healthcare, finance, automotive, education, and banking.
Flutter app design
Interactive interfaces built on Flutter’s widget library, with layouts customised to carry your brand rather than the framework’s defaults, and usability improvements that answer to real user needs.
Flutter plugin development
Reusable plugins that add capability to a Flutter app without bloating it. Cutting repetitive code keeps delivery efficient without trading away performance.
App migration to Flutter
Re-engineering apps ported from Java, Objective-C, React Native, Ionic, PhoneGap and others, preserving existing behaviour while improving performance on the way across.
Flutter app testing & QA
Thorough testing for functionality, responsiveness, and performance, combining automated and manual methods to hand over an app that behaves the same in a user’s hands as it did on the bench.
Behind The Scenes
Flutter Mobile Application Development Process
We stay transparent throughout: from the start of the project to deployment and on into maintenance, we work to your deadlines rather than around them. Here is how it runs.
Step 1
Ideation & planning
We start by pinning down the target audience, the requirements, the app’s purpose and its value proposition. Accounting for competitors, niches and where the advantage actually lies, our business analysts produce a product roadmap aimed at a successful launch.
Step 2
UI/UX design
Wireframes and prototypes first, then the interface itself, built on Flutter’s widget library so what is designed is what can be built. You review working screens rather than static mockups.
Step 3
Development
One codebase, delivered in sprints against the agreed architecture. Each sprint ends in something you can install and use rather than a status report.
Step 4
QA & testing
Automated and manual passes across real devices, covering functionality, responsiveness, and performance, because emulators and handsets disagree more often than people expect.
Step 5
Deployment
Store submission handled end to end, App Store and Play Store, with the signing, metadata, and release configuration that each review process expects.
Step 6
Post-launch support
Monitoring, OS-version upgrades, bug fixes, and iteration on what usage actually shows. Most engagements carry on here rather than ending at launch.
Flutter vs React Native: Which Cross-Platform Framework to Choose
Both build iOS and Android from one codebase, and both are production-proven at scale. The
difference is how they draw the interface and who is available to build it, which is what
usually decides the answer for a given team.
Factor
Flutter
React Native
Language
Dart, a language built by Google and used almost solely for Flutter.
JavaScript and TypeScript, the language most web teams already write.
Released by
Google, in 2017. Open source, with its own package registry at pub.dev.
Meta, in 2015. Open source, with a large third-party package ecosystem on npm.
How the UI is drawn
Draws every pixel itself with its own engine, so an app looks identical on both platforms whatever the OS version.
Maps components onto the platform’s own native widgets, so an app inherits iOS and Android look and behaviour for free.
Code shared across platforms
Close to all of it, including the UI layer, since the rendering engine ships with the app.
A large majority of the codebase, with platform-specific modules written where a feature needs them.
Hiring and team fit
Narrower talent pool. Dart is rarely used outside Flutter, so teams usually learn it for the project.
Straightforward: any React or JavaScript developer is most of the way there.
App size
Larger baseline, because the rendering engine is bundled into the binary.
Smaller baseline, because the app uses the platform’s own UI components.
Notable apps
Google Pay, BMW, eBay Motors.
Facebook, Instagram, Shopify, Discord.
Best suited to
Apps with a heavily custom or brand-led interface that must render identically everywhere.
Teams with existing React or web engineers, and apps that should feel native to each platform.
Sources: Flutter and React Native official documentation.Last updated: 12 August 2026
Expert Insights
Flutter earns its place when the interface is the product. You draw every pixel yourself, so the app looks the same on a five-year-old Android phone as it does on the newest iPhone, and brand-led designs survive contact with both platforms. Where a team already writes JavaScript, or the app should feel native to each platform rather than consistent across both, React Native is usually the better trade. We build both, and we will tell you which one fits your case.
Anand MahajanCEO, Sphinx Solutions
How much does it cost?
What a Flutter App Costs
Flutter app development typically costs between $10,000 and $150,000. Where a project lands depends on how many features it has, how much of the interface is custom, and what it has to integrate with. Most fall into one of three bands.
$10,000 to $40,000
2 to 3 months
Simple app / MVP
A handful of screens, standard widgets, and no heavy backend work. Enough to put a working product in front of real users and see what they do with it.
$40,000 to $90,000
3 to 5 months
Mid-complexity app
Custom interface work, payments, integrations with tools you already pay for, and accounts with more than one kind of user. Usually an API of your own behind it.
$90,000 to $150,000+
6+ months
Complex / enterprise app
Real-time features, offline sync, several user types, and compliance rules to satisfy. It also has to talk to the systems you already run.
We scope and quote every project on its own.
Try the app cost calculator
for an estimate against your own feature list.
Industries
Flutter Solutions for Every Sector
16 years of building means we know what each sector actually asks for: what regulators accept, what a field team can run, what an audit will look for.
Technical depth with enough creative latitude to use a framework that lets you customise every pixel, focused on quality and on solutions that clear expectations rather than meet them.
Top 5%
Flutter developers in our talent pool
We draw on a global talent pool, and the top 5% of Flutter developers bring the skills needed to build high-performing apps with custom UI from a single codebase.
80%
Faster time-to-market
Proper documentation streamlines a Flutter project and can cut time-to-market substantially, getting the product into users’ hands while the opportunity is still there.
24/7
Dedicated support and maintenance
Round-the-clock support keeps the app running after launch. Updates, bug fixes, general maintenance: we stay available to keep it performing.
97%
Client satisfaction rate
A commitment to quality and on-time delivery has produced a 97% satisfaction rate, and clients who stay with us an average of five years.
100%
Transparent cooperation
We stay transparent at every step, with progress, timelines and costs shared in your time zone and no hidden surprises.
30%
More economical approaches
Efficient cross-platform workflows are not only high quality but cost-effective, saving up to 30% on development while still delivering an app users engage with.
Everything you need to know about building with Flutter. Can’t find your answer?
Get in touch.
Flutter app development typically costs between $10,000 and $150,000. A simple app or MVP runs $10,000 to $40,000 over two to three months. A mid-complexity app with custom UI and integrations runs $40,000 to $90,000 over three to five months. A complex enterprise app starts at $90,000 and takes six months or more. The development platform, the app category, the developer’s country, the complexity and the feature set all affect the figure. For an estimate you can plan a budget around, use our App Cost Calculator.
Flutter can save up to 30% on development costs, which makes it a more economical choice for your company than the competing native development frameworks.
Yes. Flutter takes a single-codebase approach. You write the code once and have it run everywhere, so it covers both online and mobile applications. The app performance it offers is why most developers prefer the framework for cross-platform work.
Yes. Our Flutter developers integrate Flutter libraries and modules smoothly into an existing application, and the module can be set up in accordance with the Dart logic already in place.
From signing an NDA to delivering the project with all the necessary paperwork (code ownership, copyrights and the rest), we make sure our client’s intellectual property is always safeguarded. We keep the code itself secure too.
