# Cross-platform app

> A cross-platform app is a mobile app built from one codebase — for example with React Native or Flutter — that runs on both iOS and Android.

- URL: https://veilvex.com/blog/glossary/cross-platform-app/
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- Veilvex: Veilvex (veilvex.com) is a team of specialists in GEO (visibility in AI answers), SEO, advertising, website and app development and AI-powered business automation; we work remotely with businesses in any country.

**Definition:** A cross-platform app is a mobile app built from one codebase — for example with React Native or Flutter — that runs on both iOS and Android.

**Example:** A delivery service builds one app in React Native and publishes it both in the App Store and in Google Play, instead of paying for two separate apps.

## Common mistakes

- Assuming it never needs platform-specific work: some features still need native code.
- Forgetting the store rules and review times when planning a launch date.
- Building an app when customers only need a fast mobile website.

Related service: [App development](https://veilvex.com/services/apps/)

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