Apptim supports any type of native/hybrid mobile app developed in Android or iOS.
For hybrid frameworks, like Unity, React Native or Ionic, you may not get platform-specific performance issues/suggestions, but you can still use Apptim to get performance reports and crashes.
Apptim doesn't support website testing in mobile.
Note: if your app uses SDKs like HockeyApp or Crashlytics, you might want to see more details of crashes captured by Apptim in those tools.