Here are some useful applications. Feel free to add your own suggestions:
Aegis Authenticator is a free, secure and open source app for Android to manage your 2-step verification tokens for your online services.
AntennaPod is a podcast player that is completely open. The app is open-source and you can subscribe to any RSS feed. AntennaPod is built by volunteers without commercial interest, so it respects your privacy while giving you full control.
A simple calendar with events, tasks, customizable colors, widgets and no ads.
A Loyalty Card & Ticket Manager for Android
Easy and quick contact management with no ads, handles groups and favorites too.
Sync your contacts, calendars and tasks. Get live-access to your WebDAV Cloud files. All-in-one CalDAV/CardDAV/WebDAV solution for Android
Fully featured, privacy oriented email app for Android
An open-source keyboard for Android which respects your privacy. Currently in early-beta.
A premium app for managing and editing your photos, videos, GIFs without ads
Loop Habit Tracker, a mobile app for creating and maintaining long-term positive habits
Enabling communication between all your devices. Made for people like you.
OpenKeychain helps you communicate more privately and securely.
Organic Maps is a free Android & iOS offline maps app for travelers, tourists, hikers, and cyclists based on top of crowd-sourced OpenStreetMap data.
RHVoice is a free and open-source multilingual speech synthesizer.
A open source run tracker
A material designed music player for Android
Minimalistic audiobook player
A Material Design Weather Application
Simplex Chat for messaging!
also Robosats for kyc free corn
and Amethyst for nostr
Protonmail if you use them for email:
element for company / organisation comms using matrix protocol
VLC for media (kudos for not using Microsoft github):
Nice additions, thanks!
Very good list with github links! To gather all of them and be alerted for updates, use Obtainium (also OSS)
Yeah, that seems nice. I still prefer to do a manual update, but seems cool.
The combo of DAVx5 and Nextcloud is ridiculously powerful. My calendars, contacts, notes, and tasks (eg, grocery checklists) are all synced to my nextcloud instance and seamlessly work in place of Google-owned services
Yes, it's basically most of the things you need.
CalDAV for Calendar and events, CardDAV for contacts, and WebDAV for files. All in your own server. DAVx5 gives you all of them.
Basically what Google and other big tech companies offer you, but you have full control of this.
If you want something simpler than Nextcloud, Radicale is a great simple Free and Open-Source CalDAV and CardDAV Server
And you can find every app on this list on and repo
I would recommend every app on fdroid well, as all apps are open source.
The lightning wallets are not in f-droid though.
And sometimes there are different versions available in there vs the git repo, specially FairEmail
Nice list!
I would also add Librera Reader for ebooks
InviZible Pro for i2p, tor and dnscrypt
And Scrambled Exif for deleting metadata from photos.
I also quite like Book Reader, specially their handling of text in PDFs is fantastic (it makes text readable automatically, instead of having to zoom in)
Nice list, I will suggest few additions:
Keyboard: OpenBoard (FOSS, no internet connection), auto-fill and suggestions working fine, only missing the glide typing, not implemented, not sure if they ever will. For me, hard to choose, I swap between both, but the corrector and the suggestions in some occasions can make your typing more efficient. Hopefully Florisboard will implement properly the suggestion and autocorrect soon. BTW, the gliding feature in Florisboard only work in English at the moment, which is a pity. You can find it in F-Droid.
Map: "Organic Maps" is great, although, IMO, there is not an app I have tested better than "Magic Earth", FOSS and available in F-Droid, as good as Waze with offline maps if needed. Available as well in F-Droid
Magic Earth is not open source, and it's also not in f-droid.
Do you have a link to the source code?
Also, it's only available from App Stores, no apk available.
It has been a while since I check, was surprised by your reply, went to check and you are right, not opensource, based on Openstreetmaps... Oh well..., time to do some research and reconsider, not in F-Droid neither and you well stated. Thanks for keeping me straight, highly appreciate it!
Great list. A few more I personally enjoy using:
  • OpenTracks, a privacy-preserving sports tracker (to pair with OSMDashboard to view your running sessions on maps (from OSM).
  • Trail-Sense for when you go hiking (features a lot of tools).
  • ViMusic to stream music from YouTube Music for free, and with one of the best UI I've seen in music players.
Nice additions, thanks.
OpenTracks support of non-GPS activities caught my attention, since RunnerUp always requires GPS.
My two cents
Another app that I think is great is openScale.
Open-source weight and body metrics tracker, with support for Bluetooth scales
You can also use it inputting your weight manually, so a Bluetooth scale is not a requirement.
Great list! And of course the pwa :-)
Solid list.