If your on Android, and use the Google Play Store, then there's something to change.
The Google Play Store is the place to see 
s thrown in your face. Also full of Proprietary software and trackers, I would skip it.
Instead use F-Droid.
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Name: F-Droid
Features: Free software, Respects your privacy, Almost all apps Free software (if not partially open e.g. Tutanota, Bitwarden).
Mastodon: @fdroidorg
Site: https://f-droid.org/
For:
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@Tommy @fdroidorg
If you want to uninstall Playstore but still need some apps/updates from there you can use Aurora Store (Shows tracker count from exodus; you can filter out apps with ads in the search; you can put deactivated apps on a ignore list so that they won't get updated when you press 'update all').
The Aurora Store is pretty neat and yes, there is a option for a anonymous account :)
Still, all apps you will ever need are in F-Droid.
@Segebodo
Makes sense ;)
But I do know an (German native) alternative to DB Navigator I think you would really like!
It's called Öffi and it's a F-Droid repository!
Site: https://oeffi.schildbach.de/index.html
Stay Safe!
@Tommy does Oeffi also provide tickets?
@Segebodo
Sadly I don't think so...
Maybe I'm wrong 
@Tommy I like your idealism and I would agree with you 90%.
But there's stuff that you won't get and is really inconvenient not to have.
Example 1: DB Navigator (8 trackers): I want to use digital tickets; I don't have a printer; I book last-minute. I use it even though it has 8 trackers because I don't know any alternative.
Example 2: Carsharing Deutschland (0 trackers).