Can we run react native app without Android Studio?

To open the SDK Manager from Android Studio, click Tools > SDK Manager or click SDK Manager in the toolbar. If you’re not using Android Studio, you can download tools using the sdkmanager command-line tool .

Definitely YES , you can always install Android Studio with all SDK packages & Tools on an Off-line PC.

Installing dependencies. You will need Node, the React Native command line interface, a JDK, and Android Studio. While you can use any editor of your choice to develop your app, you will need to install Android Studio in order to set up the necessary tooling to build your React Native app for Android .