Cross-Platform Mobile App Development with Flutter & React Native
Launch on Android and iOS at the same time from a single codebase. Save up to 40% in cost and time compared with two separate native apps, with near-native speed and a consistent brand experience.
One team, one codebase, two app stores
For most startups and business apps, cross-platform frameworks are the smartest way to reach every user. Flutter and React Native now power apps from Google, BMW, Microsoft, Shopify and many more. Shared code means faster releases, fewer bugs and a single team to manage.
ENGIMANDI builds cross-platform apps with clean architecture and native modules where they are needed, so you get the speed of shared code without giving up camera, Bluetooth, payments or background features.
What you get
- Single codebase for Android & iOS
- Pixel-perfect custom UI
- Native modules in Kotlin / Swift
- Offline storage & background sync
- Push notifications & deep links
- Payments, maps & social login
- Over-the-air updates (where allowed)
- Play Store & App Store publishing
What we build cross-platform
We choose Flutter or React Native based on your team, features and long-term plans.
Flutter Apps
Dart-based apps with beautiful custom UI and consistent 60/120 fps performance on both platforms.
React Native Apps
JavaScript / TypeScript apps using the New Architecture, ideal if you already have React web developers.
E-commerce & Marketplaces
Catalogues, carts, payments, order tracking and seller apps.
Startup MVPs
Validate your idea on both stores quickly and iterate based on real user feedback.
Business & Field Apps
Sales, service, delivery and inspection apps that connect to your ERP or web platform.
Native to Cross-Platform
Merge two separate native apps into one maintainable Flutter or React Native codebase.
Cross-platform tech stack
Proven frameworks with strong community support.
Typical projects
- Food delivery or grocery app with rider and admin apps
- Booking app for salons, clinics or services
- Customer app for a SaaS product
- Community, events or social networking app
- Loyalty and rewards app for retail chains
- Dealer and distributor ordering app
How we deliver
Scope
Features, platforms, framework choice and backend.
Design
One design system that adapts to Android and iOS.
Build
Shared code plus native modules, weekly test builds.
Test
Device testing on both platforms and automated tests.
Release
Simultaneous launch on Google Play and the App Store.
Cross-platform app questions
Flutter or React Native: which is better?
Both are excellent. Flutter is great for highly custom UI and consistent performance. React Native is great if your team knows React or you want to share logic with a web app. We recommend based on your project.
Is cross-platform slower than native?
For most business and consumer apps the difference is not noticeable. For heavy 3D, advanced camera processing or hardware-intensive features, native Android or native iOS may be better.
Can the same code run on web or desktop?
Flutter and React Native can target web and desktop too, which is useful for admin panels and internal tools.
How much can I save with cross-platform?
Typically 30 to 40% compared with building and maintaining two separate native apps, plus faster updates.