Hybrid App Development Services One codebase, two app stores, half the maintenance.

Most business apps don't need two separate teams writing the same features twice. We build cross-platform apps in Flutter and React Native that share one codebase across Android and iOS, look native on both, and reach the stores together — with 21 years of software delivery behind every recommendation.

  • Flutter & Dart
  • React Native & TypeScript
  • Android + iOS together
  • Native modules
  • Ionic & Cordova migration
  • Shared web code
Sysfo's MLM ERP dashboards shown on a tablet and two phones for multi-device use
21+years building web and mobile software
7500+projects delivered for clients in India and abroad
1 codebase for Android and iOS, maintained once
100%source code and store accounts owned by you

Why businesses go cross-platform

Six problems a hybrid app solves — when it is built properly.

Cross-platform development is the right answer for most business apps, but only with a modern framework and developers who know where its limits are.

01

Paying twice for every feature

Separate Android and iOS teams mean double the development cost and double the bugs for the same feature.

02

Platforms out of step

The Android app has the new feature, the iPhone app gets it next month, and customers notice the difference.

03

A launch date that keeps slipping

Building two native apps doubles the time to market when you need to test your idea quickly.

04

An old hybrid app that feels slow

Ionic, Cordova or PhoneGap apps from years ago that lag, look dated and break with new OS versions.

05

Flutter or React Native?

Conflicting advice on which framework to choose, and no one to explain what it means for your app.

06

Worried about native features

Concerns that payments, Bluetooth, background location or camera won't work in a cross-platform app.

Our hybrid app development services

Cross-platform app development for Android, iOS and beyond.

Flutter and React Native apps with native performance, plus the backend and admin panel to run them.

Cross-Platform UI/UX

One design system that respects Material Design on Android and iOS conventions on iPhone.

Dual Store Publishing

Simultaneous Google Play and App Store releases with over-the-air fixes where allowed.

Logos of JavaScript and cross-platform frameworks compared when choosing a hybrid app stack
We compare frameworks for your app, not by habit.

Flutter vs React Native vs native

The right framework for your app, explained in plain terms.

Flutter and React Native are both mature, both used in large production apps and both deliver near-native results — but they suit different situations. Flutter gives one consistent, highly customised interface on every device. React Native uses real native components and lets a team share TypeScript code with a React website. And some apps are still better built natively. We compare them for your features, budget and team before recommending one.

  • Flutter: custom, brand-heavy UI and consistent rendering
  • React Native: native components and shared web code
  • Native Kotlin or Swift: heavy hardware or graphics use
  • Written comparison of cost, speed and long-term upkeep
Product catalogue screen with prices and subscribe buttons in Sysfo's milk delivery mobile app
Shopping screen from Sysfo's milk delivery app.

Flutter app development

Flutter apps with one beautiful interface on every screen.

Flutter draws every pixel itself, so your app looks identical on a budget Android phone and the newest iPhone, and custom brand designs are easy to achieve. We build Flutter apps in Dart with a clean, layered architecture, Riverpod or Bloc for state management and Firebase or your own APIs behind them — ideal for e-commerce, subscription, booking and customer-facing apps where design consistency matters.

  • Dart code with Riverpod or Bloc state management
  • Custom animations and brand-specific design systems
  • Firebase, REST and GraphQL backends
  • Flutter web and desktop builds from the same code where useful
See the milk delivery app product
Developer building a React Native mobile interface that shares code with a web app
One TypeScript team for the website and the mobile app.

React Native app development

React Native apps that share code with your website.

If your web platform is built in React, React Native lets the mobile app share business logic, validation, API clients and even developers with it. We build React Native apps in TypeScript on the modern architecture, with Expo where it speeds up delivery, and use real native components so each platform feels right. Updates to the JavaScript layer can reach users quickly through over-the-air updates, within store rules.

  • TypeScript, React Navigation and the new architecture
  • Expo and EAS builds for faster releases
  • Shared logic and API clients with your React web app
  • Over-the-air updates for quick, policy-compliant fixes
Need the web platform too? Web application development
Performance charts reviewed while optimising a cross-platform mobile app on real devices
Frame rate, start-up and memory are profiled before release.

Native modules and performance

Native speed and full device access, where your app needs it.

The old worry about hybrid apps came from WebView-based tools. Modern Flutter and React Native compile to native code, and when an app needs something the framework doesn't cover — a payment SDK, a Bluetooth printer, background location — we write a small native module in Kotlin or Swift. We also profile start-up time, frame rate and memory on real devices before every release.

  • Platform channels and native modules in Kotlin and Swift
  • Payment gateways, maps, camera and Bluetooth SDKs
  • Profiling for 60 fps scrolling and fast start-up
  • Real-device testing on Android and iPhone models
HTML and CSS app code being modernised during a Cordova to Flutter app migration
WebView-era apps rebuilt on a modern cross-platform framework.

Ionic, Cordova and PhoneGap migration

Give an ageing hybrid app a modern, faster core.

Many apps built years ago with PhoneGap, Cordova or early Ionic now struggle: PhoneGap Build has been discontinued, plugins are abandoned and new OS versions keep breaking things. We audit the existing app, keep the backend and data, and rebuild the front end in Flutter or React Native — screen by screen where possible — so users get a faster app without losing their accounts or history.

  • Audit of plugins, APIs and store compliance
  • Backend, users and data kept intact
  • Phased rebuild with parallel releases where possible
  • Same store listings, so ratings and installs are kept

What you get

Two store-ready apps from one well-documented codebase.

Our hybrid app development services end with both apps live and a single codebase your team, or ours, can extend with confidence.

  1. Framework recommendation with written trade-offs
  2. Flutter or React Native app for Android and iOS
  3. Google Play and App Store listings under your accounts
  4. Web admin panel and documented REST APIs
  5. Native modules with Kotlin and Swift source included
  6. Automated tests and a real-device test report
  7. Full source code and build scripts in your repository
  8. Upgrade guide for future framework versions

Our cross-platform development process

From framework choice to both app stores in six steps.

One team, one backlog and one codebase — with a test build for Android and iPhone every week.

  1. 1

    Consultation

    free

    Your goals, users and features, and whether a hybrid app is the right fit at all.

  2. 2

    Framework & scope

    1 week

    Flutter or React Native choice, architecture, screen list and a fixed, itemised quote.

  3. 3

    UI/UX design

    2–3 weeks

    A shared design system and clickable prototype, adapted for Android and iOS conventions.

  4. 4

    Development sprints

    6–10 weeks

    Two-week sprints with demos, weekly builds for both platforms and the backend in parallel.

  5. 5

    Testing & dual launch

    1–2 weeks

    Real-device testing on both platforms, then Google Play and App Store submission.

  6. 6

    Support & upgrades

    ongoing

    Framework and OS upgrades, crash fixes and new features shipped to both stores.

Engagement models

Hire Flutter and React Native developers your way.

Fixed-price builds for a defined app, monthly developers for an evolving product, or a focused migration project.

Dedicated Flutter or RN developer

Monthly

A cross-platform developer on your roadmap.

  • Full-time or part-time
  • Weekly builds for both platforms
  • Project manager included
Get started

Migration project

Per project

Move an Ionic, Cordova or native app to one codebase.

  • Audit and migration plan
  • Data and users preserved
  • Store listings kept
Get started

Why Sysfo for hybrid apps

A hybrid app development company that also builds native.

Because we build native Android and iOS apps too, we know exactly where cross-platform shines and where it doesn't.

Framework-neutral advice

We work in Flutter, React Native, Kotlin and Swift, so we recommend what fits rather than what we happen to know.

Native skills in the team

When an SDK or device feature needs native code, our Kotlin and Swift developers write the module in-house.

App, admin and backend together

One team builds both apps, the web admin and the APIs, so features reach every platform at once.

Proven in our own products

Our milk delivery, scrap collection and MLM products pair mobile apps with one shared backend and admin.

Fixed, itemised quotes

You see the cost of each feature for both platforms before development starts.

Your code, your accounts

Source code, store accounts and signing keys are yours; we sign an NDA on request.

Industries we build cross-platform apps for

Cross-platform technologies we use

  • Flutter
  • Dart
  • React Native
  • TypeScript
  • Expo
  • Riverpod
  • Bloc
  • Redux Toolkit
  • Firebase
  • GraphQL
  • Kotlin
  • Swift
  • Ionic
  • Capacitor
  • Codemagic
  • Fastlane

FAQ

Hybrid App Development Services — frequently asked questions

What are hybrid app development services?

Hybrid app development services build one app that runs on both Android and iOS from a single codebase. Today that usually means Flutter or React Native, which compile to native code, rather than older WebView tools. Our service covers framework choice, UI/UX design, development, native modules, backend and admin panel, testing, publishing to both stores and ongoing upgrades.

What is the difference between hybrid, cross-platform and native apps?

Native apps are written separately for each platform in Kotlin or Swift. Cross-platform apps share one codebase, using Flutter or React Native, and still compile to native code. 'Hybrid' traditionally meant web code inside a WebView, as with Cordova or Ionic, but the term is now widely used for any cross-platform app. We build all three.

Flutter or React Native: which should I choose?

Choose Flutter for a highly customised, brand-led interface that looks identical everywhere, or when your team has no existing JavaScript code. Choose React Native when you have a React web app to share code and developers with, or want platform-native components. Both are mature; the right pick depends on your app, so we compare them for your case.

Is hybrid app development cheaper than native?

Usually, yes. Because most of the code is shared, hybrid app development typically costs noticeably less than building and maintaining two separate native apps, and features ship to both platforms together. The exact saving depends on how much platform-specific work your app needs. We give a fixed, itemised quote after understanding your requirements.

How long does it take to build a cross-platform app?

A focused Flutter or React Native app with an admin panel typically takes 8 to 14 weeks from scoping to launch on both stores. That is usually much faster than building two native apps in sequence. You receive test builds for Android and iPhone every week during development.

Will a Flutter or React Native app perform like a native app?

For most business, e-commerce, booking and content apps, users can't tell the difference: both frameworks render at 60 frames per second and start quickly. Apps with heavy 3D graphics, complex video processing or very deep hardware use may still be better native. We profile performance on real devices before every release.

Can you convert our Ionic or Cordova app to Flutter?

Yes. We audit the existing app and its plugins, keep your backend, user accounts and data, and rebuild the front end in Flutter or React Native. The new version is published under the same store listings, so you keep your reviews and existing installs, and users simply update.

Who owns the code for our hybrid app?

You do. With our hybrid app development services, the source code, design files, signing keys and both store accounts belong to you. We keep the code in a repository you control and hand over documentation, so you are never locked in to us as a vendor.

Do you maintain cross-platform apps after launch?

Yes. Flutter and React Native release new versions regularly, and Android and iOS change every year. Our monthly maintenance plans cover framework and dependency upgrades, OS compatibility, crash fixes and new features released to both stores together, with response times agreed in writing.

Start your cross-platform app

Get a free estimate for your Android and iOS app.

Tell us what your app should do. A cross-platform specialist will call you back within one business day with a framework recommendation, followed by a free, itemised estimate.

  • Free consultation and estimate
  • Flutter or React Native, explained
  • Android and iOS from one codebase
  • Weekly test builds for both platforms
  • NDA signed on request
  • You own the code and store accounts

Request a free cross-platform app estimate

We reply within one business day. Your details are only used to respond to this enquiry.