Secure messengers
Conversations Google Play, F-Droid
Element Messenger App Store, Google Play, F-Droid
Threema App Store, Google Play
Signal App Store, Google Play
Public transport
Offi Google Play, F-Droid
Calendar, contacts and to-dos
Business Calendar 2 Google Play
DAVx⁵ Google Play, F-Droid
ICSx⁵ Google Play, F-Droid
Tasks Google Play, F-Droid
File tansfer and synchronisation
FTP Server Google Play, F-Droid
Nextcloud App Store, Google Play, F-Droid
Syncthing Google Play, F-Droid
Passwords
Bitwarden App Store, Google Play
KeePassDX Google Play, F-Droid
Yubico Authenticator App Store, Google Play
Privacy and security
Cryptomator App Store, Google Play, F-Droid
Léon – The URL Cleaner Google Play, F-Droid
OpenKeychain Google Play, F-Droid
Mullvad VPN App Store, Google Play, F-Droid
WireGuard App Store, Google Play
Music, podcast and video players
AntennaPod Google Play, F-Droid
VLC App Store, Google Play, F-Droid
App stores
F-Droid F-Droid
QR code scanner
Binary Eye Google Play, F-Droid
Email clients
FairEmail Google Play, F-Droid
Browsers
Firefox App Store, Google Play
Firefox Focus/Firefox Klar App Store, Google Play
Mastodon clients
Mastodon App Store, Google Play
Tusky Google Play, F-Droid
Notes and flash cards
NeuraCache App Store, Google Play
Nextcloud Notes App Store, Google Play, F-Droid
Obsidian App Store, Google Play
RSS feed reader
Nextcloud News, Google Play, F-Droid
Nextnews App Store
Android system utilities
Shelter F-Droid
Mapping
StreetComplete Google Play, F-Droid