Services / Mobile App Development / Cross-Platform App Development
Mobile App Development
Mobile App Development

Cross-Platform App Development

Cross-platform mobile app development — React Native and Flutter apps that look and feel native on iOS and Android from a single codebase, delivering faster time-to-market without sacrificing quality.

8–16 wks
Typical Delivery
80–90%
Shared Codebase
Native-Feel
Performance Standard

Cross-platform mobile development delivers iOS and Android applications from a single codebase — reducing development cost by 40–60% compared to separate native builds while maintaining near-native performance and platform-appropriate user experiences. We build with React Native using TypeScript and Flutter using Dart, selecting the framework that best fits your team's existing skills, your app's performance requirements, and your third-party library ecosystem.

We have shipped cross-platform applications for food delivery, on-demand services, social networking, event management, e-commerce, and enterprise field tools — applications used by hundreds of thousands of users on both iOS and Android simultaneously. Our cross-platform approach is pragmatic: we build in shared TypeScript or Dart for all business logic and UI components, and write targeted native modules in Swift and Kotlin for the features that genuinely require direct hardware or OS access — camera, Bluetooth, biometrics, payments, and background audio. The result is an application users cannot tell is cross-platform, because we hold it to native quality standards throughout.

Over-the-air (OTA) update infrastructure via Expo Updates or Microsoft CodePush is configured by default, enabling you to ship bug fixes and UI improvements to all users within hours — bypassing the App Store review cycle for changes that do not touch native code. A single CI/CD pipeline builds, tests, and distributes to both platforms simultaneously, keeping your release cadence fast and your engineering team focused on features rather than platform fragmentation.

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£48.2K
Revenue this month
2,840
Active users
React Native Flutter TypeScript Dart Expo CodePush Firebase Redux Toolkit Fastlane GitHub Actions
  • React Native (TypeScript) or Flutter (Dart) shared codebase for iOS and Android
  • Platform-specific UI adaptations: navigation patterns, typography, and gesture handling
  • Native module bridges in Swift and Kotlin for hardware and OS-level feature access
  • Expo managed or bare workflow with custom native module CLI configuration
  • OTA update infrastructure: Expo Updates or Microsoft CodePush configured
  • Automated iOS and Android release pipeline with TestFlight and Firebase distribution

Why RapideKops?

  • We select React Native or Flutter based on your specific requirements — not a default preference
  • Native modules written in Swift and Kotlin wherever cross-platform falls short on quality
  • OTA updates configured so hotfixes reach all users within hours — no App Store wait
  • Single CI/CD pipeline builds, signs, and distributes both platforms simultaneously
  • Performance profiled on real iOS and Android hardware — including low-end Android devices
  • Source code structured so a native mobile specialist can maintain or extend it independently

Our Delivery Process

01

Framework Selection

We evaluate React Native vs Flutter against your requirements, team skills, and third-party library needs — documenting trade-offs transparently before any decision is finalised.

02

Architecture & Shared Layer

We design the shared state management, navigation, and API integration layer — maximising code reuse while preserving platform-appropriate UX patterns.

03

Build & Device Test

Two-week sprints with builds distributed to real iOS and Android devices via TestFlight and Firebase. Platform-specific regressions identified and resolved early.

04

Optimise & Publish

Performance profiling, jank elimination, OTA update infrastructure configuration, and simultaneous submission to App Store and Google Play.

Frequently Asked Questions

What is the difference between React Native and Flutter?
React Native uses JavaScript/TypeScript and renders using native platform UI components — meaning your app looks like a native app on each platform. Flutter uses Dart and renders everything on its own graphics engine, giving pixel-perfect consistency across platforms. React Native is better when you have a JavaScript/React team. Flutter is better for highly custom UIs and teams comfortable learning Dart.
How much cheaper is cross-platform development versus two native apps?
Typically 40–60% less expensive than two separate native builds. The savings come from a shared business logic layer, shared state management, shared testing, and a single deployment pipeline. The saving is not 100% because each platform still needs platform-specific UI tuning, native module bridges for hardware features, and separate App Store management.
Will users be able to tell the app is cross-platform?
Not if it is built correctly. We apply platform-specific navigation patterns, typography, and gesture handling so each platform feels natural to its users. Performance is profiled on real devices throughout development to eliminate any jank. A well-built React Native or Flutter app is indistinguishable from native to the vast majority of users.
What are OTA updates and how do they work?
Over-the-air updates allow you to push JavaScript bundle changes to users without going through the App Store review process. Bug fixes, content changes, and UI improvements in the JavaScript layer can reach all users within minutes of deployment. Changes to native code still require a full store release. We configure Expo Updates or Microsoft CodePush as standard.
Can we add native-only features to a cross-platform app?
Yes — this is standard practice. When a feature requires direct hardware or OS API access that the cross-platform bridge does not cover, we write a native module in Swift (iOS) or Kotlin (Android) that the cross-platform layer calls. This is how we implement Bluetooth LE, NFC, advanced camera controls, and platform-specific auth flows in cross-platform apps without compromising capability.

Recent Work

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Ready to Ship on iOS and Android Without the Double Development Cost?

One codebase, both stores, native-quality UX — we will scope your cross-platform app and get you to market faster than two separate native builds.