Cross-platform app development: one codebase, both app stores.
Flutter and React Native apps for iOS and Android, built by one senior team from a single codebase — native-feeling, fully tested on both platforms and launched to the App Store and Google Play.
Cross-Platform App Development with Kurchu.
Cross-platform app development means building one app, from one codebase, that runs on both iOS and Android. Kurchu Software Solutions builds cross-platform apps with Flutter or React Native for startups and businesses in the US, UK, UAE and Canada, and recommends native Swift and Kotlin instead when a product genuinely needs it. One team designs, builds, tests and launches the app to both stores.
- Frameworks
- Flutter (Dart) and React Native (TypeScript)
- Platforms
- iOS and Android, phones and tablets
- Typical saving
- One codebase instead of two native apps
- Backend
- Firebase, Supabase or a custom Node.js and PostgreSQL API
- Testing
- Real iPhones and Android devices before every release
- Ownership
- All code, designs and store accounts in your name
When cross-platform is the right call
Most business apps are a good fit. These are the signs:
You need both stores at launch
Your customers use iPhones and Android phones, and launching on one store first would leave half of them waiting.
Budget and speed matter
One codebase means one team, one set of features to build and test, and updates that reach both platforms together.
Your interface is custom
Flutter draws every pixel itself, so a distinctive brand looks identical on both platforms without two separate implementations.
You already use React
React Native shares language and patterns with a React website, so web and mobile teams can work from the same skills.
You want a small team long term
Fewer codebases to maintain keeps the cost of every future release, and every OS update, lower.
Not a fit: heavy device work
Advanced AR, demanding audio or video processing and deep hardware integrations are usually better served by native iOS and Android apps.
What a cross-platform build includes
App & interface
- UX flows and UI design for both platforms
- Platform conventions respected where users expect them
- Arabic and right-to-left layouts when needed
- Accessibility to WCAG 2.2 AA
Native features
- Push notifications and deep links
- Camera, location, maps and file uploads
- Apple Pay, Google Pay and in-app purchases
- Native modules written in Swift or Kotlin when a plugin falls short
Backend & launch
- Authentication, roles and admin dashboard
- APIs, database and cloud hosting
- Automated builds for both stores
- App Store and Google Play submission
How we choose between Flutter and React Native
Every step ends with something you can review. See our full development process.
- 01
Your existing stack
A React web team points towards React Native; no existing stack leaves the choice open.
- 02
Interface ambition
Highly custom, animated interfaces often favour Flutter's own rendering engine.
- 03
Plugins you need
We check that payments, maps and other SDKs you need are mature on the framework.
- 04
Written recommendation
You get one recommendation with its trade-offs and cost in writing, before any code.
A fixed quote for your cross-platform app
Every cross-platform project is priced from its own scope — the features, integrations and design it needs — never by the hour. Start with a free discovery call and get a written scope with a fixed price for the first phase. Request a quote or see how we price projects.
- 01
Discovery call
A conversation about your goals, users, timeline and budget. No charge and no obligation — and if we are not the right fit, we will say so.
- 02
Written scope
Features, deliverables, timeline and a fixed price for the first phase, priced in GBP, USD, CAD or AED — so you know the commitment up front.
- 03
Approve and start
Work begins only once you approve the scope. Each later phase is priced the same way, using what the previous phase taught us.
Questions, answered.
Something we haven't covered? Write to info@kurchu.com — a senior person replies within one working day. Or for a quick answer.
Both use one codebase for iOS and Android, but they work differently. Older hybrid apps show a web page inside an app shell, which can feel slow and out of place. Modern cross-platform frameworks like Flutter and React Native render real app interfaces and reach native device features, so users get a fast, native-feeling app. We build with Flutter and React Native, not web-view hybrids.
Neither wins everywhere. Flutter suits highly custom, animated interfaces and teams starting fresh; React Native suits teams that already use React and TypeScript on the web. Both produce production-quality apps for iOS and Android. During discovery we compare your features, integrations and team against both, then recommend one in writing with its trade-offs and the cost of each option.
For most business apps, users are unlikely to notice a difference: screens are smooth, start-up is quick and device features work as expected. The gap appears in specialised products such as heavy 3D, advanced augmented reality or real-time audio processing. If your app depends on those, we will say so and recommend native Swift and Kotlin, or a native module inside the cross-platform app.
Yes. Besides fixed-price projects, Kurchu offers a dedicated team model for funded companies that need ongoing capacity: Flutter or React Native engineers, a designer and a product lead working inside your rituals, scaled up or down monthly. You keep full ownership of the code and the store accounts, and the team works within your business hours for the UK, US, UAE or Canada.
Yes, usually in phases rather than one big rewrite. We start with a fixed-price audit of the current apps, then plan a migration that keeps the live app serving customers — for example rebuilding one section at a time, or launching the new app once it reaches feature parity. The audit tells you honestly whether migrating will save money over maintaining two native apps.
Let's build the one they keep.
Tell us where you are today — idea, prototype, or existing product — and we'll help define the smartest next step.
info@kurchu.comWhere are you today?
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