this post was submitted on 05 Dec 2025
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What open-source Android apps should people know about? (europe.pub)
submitted 4 days ago by cm0002@suppo.fi to c/opensource@programming.dev
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Share your favorite open-source F-Droid apps so more users can find and enjoy them.

How to contribute:

  • Single app per comment: mention a single app per comment so popular ones are simple to find.
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Let’s build a useful collection of must-have F-Droid apps!

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[–] Mikina@programming.dev 2 points 3 days ago* (last edited 3 days ago)

Someone once posted here in a comment an app they are working on that is an K2K (keyboard to keyboard) encrypted keyboard app for android

I don't remember how it worked and only skimmed the repo, since I didn't think I'd need it, but given recent developments it might be good to have.

Does anyone remember what it was?

IIRC the idea was that you have a separate input box, and encryption keys saved in the keyboard app, and it just does I assume PGP before pasting the text into the app your inputing into. I'm curious how it did key exchange and how usable it was, but I lost the link and couldn't find it.