My app does not collect any information, but I have no way of knowing what the libraries are doing exactly.
All the libraries that I used in the app version 1.5 are:
androidx.appcompat:appcompat:1.4.2
com.google.android.material:material:1.6.1
com.google.android.gms:play-services-ads:20.6.0
androidx.constraintlayout:constraintlayout:2.1.4
com.google.code.gson:gson:2.8.9
com.squareup.retrofit2:retrofit:2.6.4
com.squareup.retrofit2:converter-gson:2.6.4
com.google.android.play:app-update:2.1.0
com.github.michaelmuenzer:ScrollableNumberPicker:0.2.2