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.
- No duplicates: check existing comments first.
- Upvote what you like: if you like an app someone shared, upvote it to help others discover it.
Let’s build a useful collection of must-have F-Droid apps!


Syncthing — Continuous file synchronization, self-hosted alternative to cloud.
SyncThing is probably my most used bit of software after LibreWolf. I have it installed on all of the computers I use so I have damn near instant, magical access to a bunch of files. It’s how I sync my photos from my Pixel.
It’s funny, because SyncThing is basically the reason I barely use my iPad these days. While there is a way to make it work with iOS, it’s irritating enough that I just don’t bother, and I don’t use iCloud storage anymore, so it’s a pain in the arse getting documents to it compared to just dropping them in a ST folder that my phone can access.
I use this on my Macs — I think it works on all platforms? My use case is quite interesting. I have two Nintendo Switch emulators, one on a Mac and one on a MacBook. Due to the way Nintendo handles save files, it’s not the same folder name from machine to machine. You’d think it would be something dumb like \saves{serial-of-game} but no, it’s weird, it’s dumb, and it makes syncing a challenge.
SyncThing isn’t easy to set up, but it’s doable. I had to find the folder on both systems (different names, of course) and I have ST set up to where if it detects a change in one, it updates the other.
For the test, I set up Animal Crossing on the Mac, played until I could generate a save (roughly 10-15 minutes, I think: you do character creation, then a tutorial, before you’re allowed to go to sleep, and wake up with real-time enabled), then I booted it up on the MacBook and expected the save to load. I got a screen (within the game) I had never seen before, something about transferring my data to a new Switch (I’m guessing there’s a hardware ID in there), but then, it worked. I might have to face that screen every time, but I did what Ninten-don’t — I have an Animal Crossing save that lives on two machines at once. (And I never play it. I really just did it to see if I could. I play the game on my actual Switch, the actual game I paid for, because I wasn’t trying to rip off Nintendo, really, just see if I could do it. And, ST was the tool I used to accomplish it.)
I have my Calibre library in SyncThing, so if I’m on my work PC and see a book I want to put on my Kobo I don’t have to wait until I’m home. Its great!
Is there a android app again?
Check out Termux and running it inside the termux terminal. It’s the same package as what you’d get from apt and battery life has actually been better compared to the android fork. Need to manually start it after a reboot though.
https://f-droid.org/packages/com.github.catfriend1.syncthingfork
PSA: The Syncthing fork repo has very recently been taken by a new maintainer without notice from the old one. However, the new maintainer seems to be in possession of the old PGP keys, which has made a lot of community members cautious/suspicious.
Related forum thread in the Syncthing forums
I’ve also found another client for Android: syncthing tray, which seems to come from a popular client for desktop but it also supports Android.
https://github.com/Martchus/syncthingtray
Personally, I find it a good replacement, though its gui is slightly slower and it does not support all the features that syncthing-fork has.
Yep