Tutorial: Using React Native and Expo

One codebase, three targets

This tutorial introduces a React Native project built with Expo, its router and its UI library. The resulting universal app is meant to run on Android, iOS and the web, and the description frames it as the start of a longer tutorial, so it reads as an orientation rather than a complete course.

Why it is useful

File-based routing brings a navigation model to mobile projects that web developers will recognize from other frameworks.

Who it suits

• React developers new to mobile.
• Teams weighing a single codebase for several platforms.

No level is stated, so expect to need basic JavaScript and React knowledge before you begin.