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Flutter & React Native · One codebase · iOS + Android

Cross-Platform App Development Company

We build iOS and Android apps from a single codebase using Flutter or React Native — delivering near-native performance at 20–30% lower cost and faster delivery than separate native builds. One team, one codebase, both stores. 100% IP ownership.

Cross-Platform App Development

One Codebase. Both Platforms.
No Compromise on Quality.

Cross-platform development has matured dramatically. Flutter and React Native now power production apps at Google, Facebook, Microsoft, and Shopify. The performance gap with native has narrowed to the point where the vast majority of apps have no reason to maintain two separate native codebases.

iCoderz has shipped 150+ cross-platform apps since 2016. We use Flutter for most new projects (better UI consistency, better animation performance) and React Native when teams have existing JavaScript expertise. Both deliver iOS and Android from a single codebase, tested on 50+ physical devices.

Cross-platform app development company — iCoderz builds Flutter and React Native apps
150+
Cross-Platform Apps
What We Build

Cross-Platform App Development Services

Flutter App Development
Dart-based cross-platform apps with pixel-perfect UI, 60–120fps animations, and BLoC or Riverpod state management. Single codebase ships to iOS, Android, and Web from one pipeline.
React Native App Development
JavaScript-based cross-platform apps with native component rendering. New Architecture (JSI + Fabric) by default. Ideal for teams with React/JS expertise or apps needing platform-native look and feel.
Cross-Platform MVP Development
Market-ready iOS + Android MVP in 10–14 weeks. Validate your app concept with real users on both platforms simultaneously — without the cost of two separate native builds.
Native App Migration to Cross-Platform
Migrate existing separate iOS and Android native apps to a unified Flutter or React Native codebase — reducing maintenance overhead, unifying release cycles, and halving future development costs.
Cross-Platform + Web
Flutter Web extends your iOS/Android app to a browser-based version from the same codebase. React Native Web shares JavaScript business logic with a React.js web app. One product, every platform.
Dual App Store Submission
Both App Store and Google Play submissions managed simultaneously from one codebase. TestFlight + internal testing tracks before going live on both platforms at the same time.
Pricing & Timeline

Cross-Platform App Development Cost

Project TypeWhat's IncludedTimelineEstimated Cost
MVP (iOS + Android)Core screens + backend + both stores10–14 weeks$18K – $35K
Full-Featured AppCustom UI + integrations + IAP + push14–20 weeks$40K – $90K
App + Web PlatformiOS + Android + Flutter Web or React Web18–26 weeks$60K – $120K
Enterprise PlatformMDM + SSO + custom modules + compliance24–36 weeks$100K+
How We Build

Our Cross-Platform Development Process

01
Framework Selection
We recommend Flutter or React Native based on your team's expertise, UI requirements, and performance needs — then scope architecture and data models for your specific use case.
02
Cross-Platform UI Design
Platform-aware Figma designs — unified custom UI for Flutter, or platform-specific variants for React Native. Both iOS and Android previews signed off before development.
03
Single-Codebase Development
One team builds for both platforms in parallel sprints. Shared business logic, shared tests, shared CI/CD pipeline. Platform-specific code isolated to thin adaptation layers only.
04
QA on iOS & Android
Manual testing on 50+ physical devices. Automated tests run on both platforms simultaneously. One QA pass covers both — not two separate test cycles.
05
Simultaneous Launch
App Store and Google Play submissions managed simultaneously. Both stores go live at the same time — no staggered multi-platform release window.
06
Unified Post-Launch Support
One team supports both platforms. Framework SDK upgrades, new OS version compatibility, feature additions, and crash monitoring — all from a single development stream.
Why Cross-Platform

Benefits of Cross-Platform App Development

Explore the exceptional benefits of cross-platform development, where cutting-edge technologies redefine the mobile app landscape. As a leading Cross-Platform Development Company in India, we deliver intuitive code and developer-friendly features that revolutionise app development.

Benefits of Cross-Platform App Development
Design and Development
Design and Development
As a top cross-platform mobile app development company, we use technologies that streamline the development of feature-rich applications.
Quick App Development
Quick App Development
With tools like Flutter and React Native, app development is swift and efficient, allowing companies to launch their applications quickly.
Highly Safe
Highly Safe
As a leading cross-platform mobile app development agency, we prioritise safety, ensuring your applications are protected from threats.
Optimal Performance
Optimal Performance
Cross-platform mobile development comes with cutting-edge libraries that enable the creation and deployment of high-performing solutions.
Effortless Integration
Effortless Integration
The platforms facilitate integrating different modules and functionalities into the application, making them ideal for professional, real-time, and enterprise app development.
Scalability
Scalability
Cross-platform technologies for scalable and high-tech apps provide the perfect framework for developing large-scale solutions that can grow with your business.
Our Tech Stack

Technology, Mastered

We don't just use technology — we understand it. Our team chooses the right frameworks and languages not because they're trendy, but because they're the best fit for your project.

Flutter Flutter
React Native React Native
Kotlin Kotlin
Swift Swift
Android Android
iOS iOS
Node.js Node.js
Laravel Laravel
PHP PHP
Firebase Firebase
MongoDB MongoDB
MySQL MySQL
PostgreSQL PostgreSQL
Redis Redis
React.js React.js
Vue.js Vue.js
Angular Angular
TypeScript TypeScript
Next.js Next.js
Shopify Shopify
Magento Magento
WooCommerce WooCommerce
Jest Jest
Cypress Cypress
AWS AWS
Google Cloud Google Cloud
Docker Docker
Kubernetes Kubernetes
GitHub GitHub
GitLab GitLab
Figma Figma
OpenAI
TensorFlow
PyTorch
LangChain
Hugging Face
Python
Engineering Stack

Our Cross-Platform Technology Stack

Flutter and React Native — the two leading cross-platform frameworks — with modern state management, native integrations, and end-to-end CI/CD.

Flutter
Core
Flutter 3.x · Dart 3 · Impeller Rendering Engine
State Management
BLoC · Riverpod · Provider
Storage & Data
Drift (SQLite) · Hive · Isar · Firebase
React Native
Core
React Native 0.76+ · TypeScript · New Architecture (JSI)
State & Navigation
Redux Toolkit · Zustand · React Navigation 7
Tooling & CI/CD
Fastlane · GitHub Actions · Codemagic · Firebase Crashlytics
Why iCoderz

Why Choose iCoderz for Cross-Platform Development

Flutter and React Native experts. 50+ device test lab. Dual app store submission. 150+ cross-platform apps shipped.

01

Both Flutter & React Native Expertise

Most agencies commit to one framework and recommend it regardless of fit. We build production apps in both Flutter and React Native — and we recommend based on your team’s skills, app complexity, and timeline, not on what we prefer to build.

02

20–30% Lower Cost Than Two Native Apps

One shared codebase = one engineering team, one sprint, one QA cycle. For most consumer and B2B apps, the cost saving versus building separate iOS and Android codebases is substantial — without meaningful performance trade-offs.

03

Real Native Device Access

Camera, GPS, biometrics, Bluetooth, NFC, and push notifications — all via genuine native APIs, not web fallbacks. Our cross-platform apps access the same device capabilities as Swift and Kotlin apps. No feature compromise.

04

Simultaneous iOS & Android Launch

Ship to the App Store and Google Play in the same week — not months apart. A shared codebase means testing, fixing, and releasing happens once. Your launch moment is unified, not split across two platform timelines.

05

100% Code & IP Ownership

Full source code handover, NDA, and zero vendor lock-in — whether we build in Flutter or React Native. Your engineering team can maintain, extend, or migrate the codebase independently after delivery.

Let's Talk

Let's Talk About
Your Project

Book a 30-minute discovery call. We'll discuss your goals, timeline, and team requirements — then tell you honestly if we're the right partner.

01

You book a call → we confirm within 24 hours

02

30-minute video call to understand your project

03

Within 5 business days: proposal with scope, timeline & pricing

Book Your Discovery Call

No pressure. No obligation. If we're not a fit, we'll say so.

Get in Touch!

FAQ

Frequently Asked Questions About Cross-Platform App Development

Questions about Flutter vs React Native, cost, timelines, or native access? Our engineers have answers.

Ask a Question

Cross-platform app development means building a single codebase that compiles and runs on both iOS and Android. Frameworks like Flutter (Dart) and React Native (JavaScript) share 70–95% of code between platforms while accessing native device features — resulting in faster development, lower cost, and one team maintaining both platforms.

Yes — typically 20–35% cheaper than building separate native iOS and Android apps. A cross-platform MVP costs $18K–$35K vs $25K–$55K for equivalent dual-native development. Cost savings come from shared codebase, shared QA, and one release cycle instead of two separate ones.

Flutter and React Native are the two leading frameworks in 2026. Flutter delivers pixel-perfect UI consistency and better animation performance. React Native bridges to native components and leverages existing JS expertise. iCoderz recommends Flutter for most new projects and React Native when teams have existing JavaScript/React expertise.

Yes. Both Flutter and React Native have comprehensive plugin/module ecosystems covering camera, GPS, Bluetooth, push notifications, biometrics, in-app purchases, and more. Platform-specific features not available via packages can be accessed through custom native modules written in Swift/Kotlin and called from the cross-platform layer.

Choose cross-platform for most consumer apps, enterprise tools, and startups — it delivers 80–90% of native performance at 70% of the cost. Choose native (Swift + Kotlin) for apps needing extreme graphics (3D, AR/VR), the very latest OS APIs before framework support, or deeply different platform-specific experiences.