PayNoWay
Bitcoin wallet app made to test payment systems against double-spend attacks.GPL-3.0-only
Sweet IPFS
Run and manage an IPFS node from your deviceGPL-3.0-only
Threema Libre
Secure and private messagingAGPL-3.0-only
Aegis Authenticator
Free, secure and open source 2FA app to manage tokens for your online servicesGPL-3.0-only
SimpleX Chat
SimpleX Chat - e2e encrypted messenger without any user IDs - private by design!AGPL-3.0-or-later
SDB Viewer
View song lyrics, a translation of it and guitar chordsGPL-3.0-only
phyphox
Perform physics experiments with your phone. (by the RWTH Aachen University)GPL-3.0-only
HTTP Request Shortcuts
Submit HTTP Requests from Shortcuts on your Home ScreenMIT
OpenKeychain: Easy PGP
Encrypt your Files and Communications. Compatible with the OpenPGP Standard.GPL-3.0-or-later
xBrowserSync
Browser syncing as it should be: secure, anonymous and free!GPL-3.0-only
Trail Sense
Use your phone's sensors to assist with wilderness treksMIT
MoneyBuster
Multi-project shared budget manager able to sync with self hosted FOSS servicesGPL-3.0-or-later
Unciv
Open source 4X civilization-building gameMPL-2.0