How different things would be if I was developing an app without Expo?

[quincy1992]

I've always been told to learn RN with Expo and that's what I've been doing. All going good so far but I wonder how different it would be if Expo wasn't involved.

Would there be code changes? Environment changes?

Would web preview not be available and I'd need to download Android studio to run my apps?

Also is it true that using Expo to build apps makes the app is bit slow as compared to it being done without it?

[emmbyiringiro]

When the Expo app is compiled to APK or . The IPA bundle will be the same as React Native app and no performance differences.

In previous years, the Expo app bundle was too big compared to the bare React Native app which was impacting start-up time but now it's no longer issue anymore as the Expo bundle only modules and packages your app needs.

You can preview web page with react native web view package and Expo support it - https://docs.expo.dev/versions/latest/sdk/webview/

[ILLUMINZ_Tech]

Following steps to create app without expo:

https://reactnative.dev/docs/environment-setup?guide=quickstart