ActivityStarter

Hallo,
is it possible to launch an app (e.g. Spotify, YouTube) from my own app built with Appinventor? If YES, please suggest a solution. I have already tested various attempts with the ActivityStarter, but I don't get any results.
Thanks in advance.

Yes

Starting other external apps

You can use the Activity Starter to start any activity at all. You’ll need to know the package name and class name, or the appropriate intent. Some third-party application developers document this information. For hints on starting external apps, see the Android API documentation or search the Android developer forums.

Play a YouTube video

You'll need to know the URI of the YouTube video. Then set the Activity Starter action to VIEW, and set the Data URI to vnd.youtube followed by the YouTube URI of the video to be played, for example

Action: android.intent.action.VIEW

DataUri: vnd.youtube:nAPk9ycCbfc

See ActivityStarter documentation