Both frameworks let one team build a single app that runs on iOS and Android. That alone makes either one a better choice than building two native apps for most business projects. The question is which one for your project.
Where they are similar
- One codebase, both platforms.
- Good performance for the vast majority of apps — lists, forms, media, maps, chat.
- Mature ecosystems with packages for payments, notifications, analytics and the rest.
- Real production track records at large companies.
Where Flutter tends to win
- Consistency. Flutter draws its own UI, so the app looks identical on every device and OS version. Fewer "it looks wrong on this one phone" bugs.
- Animation and custom design. If your product leans on a distinctive, animated interface, Flutter makes that cheaper to build well.
- Predictable upgrades. Fewer moving native pieces to break when iOS or Android ships a new version.
Most of the 21 apps Codrex has shipped that needed cross-platform went with Flutter for these reasons.
Where React Native tends to win
- Shared skills with web. If you already have a React web app or a team that knows React, React Native reuses that knowledge and sometimes code.
- Native look by default. It uses the platform's real components, so the app feels "iOS on iOS, Android on Android" without extra work.
- Hiring pool. More developers know JavaScript than Dart, which can matter if you plan to build a large in-house team.
The honest recommendation
For a standalone business app — delivery, booking, retail, services — we default to Flutter. For a company that already lives in the React ecosystem and wants one stack across web and mobile, React Native is the pragmatic pick.
Either way, insist on: you own the code, the stack is mainstream, and another team could pick it up later. Both frameworks pass that test. A bespoke framework nobody else uses does not.