- Actually Aurora Store is like Google Play Store, except that you can log in anonymously. So you can get most of the usual apps from there. F-Droid is much smaller but has only open source apps. For Katapult documentation look here: GitHub - gezimos/Katapult: Minimal Android Grid Launcher · GitHub
- So you need rare apps. The Kompakt is a de-googled phone, meaning Google services won’t work, so most banking apps won’t work
That is a common thing with all de-googled phones. Maybe you should have checked before you bought it ? The Gospel Library might be on Aurora Store as well, but if it isn’t, you can download it here: https://gospel-library.en.softonic.com/android While most of those apk mirror sites are questionable, very few seem to host safe .apk’s. A timer/stopwatch has been requested many times, but natively the Kompakt doesn’t have one Maybe in the upcoming OS update. You can find many timers and stopwatches on F-Droid, such as this one: Clock | F-Droid - Free and Open Source Android App Repository
Btw, I’m also pretty new to all of this, the Kompakt is my first “smartphone”.
You can also check out the Katapult thread and ask questions there: