Google is actively removing functionality from Android:
- Starting with Android 28, Oreo, user apps are not allowed to react to app installs
- Starting January 9, 2019 user apps are no longer allowed to request permission: to access call logs and to send SMS messages
These severely limit what apps such as Bubble Cloud can do.
Good news: I found a workaround, please read about it here: Install Summary plugin to get around new restrictions