Auxio
A simple, rational music playerGPL-3.0-only
RelayPony Secure File Transfer
Send files phone to phone, encrypted end to end. No account, no cloud, no ads.Apache-2.0
GPSLogger
A lightweight GPS logger, battery efficient, GPX/KML, add notes, share, upload.GPL-2.0-only
Bagatur Chess Engine
Offline chess play with 16 strength levels. Chess Engine with its own GUI. ChessGPL-2.0-only
DesKilo
Coworking communities: booking, shared money and a social network.0BSD
Butterfly
Take notes, draw freely, and organize ideas across an endless workspaceAGPL-3.0-only
Linwood Butterfly Nightly
Take notes, draw freely, and organize ideas across an endless workspaceAGPL-3.0-only
ForgetMeNot
A flashcard app that won't let you forget anything.GPL-3.0-only
Hypatia
A real-time malware scannerAGPL-3.0-or-later
PaperCript
Encrypted passwords on printable QR cards. No network, stores nothing.MIT
Notenkladde
Photograph and import sheet music, read it while you play, write notes on itApache-2.0
KeliBoard
Customizable open-source keyboardGPL-3.0-only
Meshtastic
The official app for Meshtastic, an open-source, off-grid, mesh radio.GPL-3.0-only
P.CASH Crypto Wallet
Bitcoin, Ethereum, Monero, zCash, Dogecoin, PirateCash, Cosanta, DeFi & moreMIT
DavNotes
Simple notes synced with your own CalDAV server, such as RadicaleMIT
NFC Archiver
Store and restore files across multiple NFC tagsMIT
Keyoxide
Verify decentralized cryptographic identities on the goAGPL-3.0-or-later
Healthy Battery Charging
Prolong the life of your battery by keeping it charged between 40% and 80%MIT
OpenMultiMaps
Display maps with OpenStreetMapGPL-3.0-only
RootlessJamesDSP
System-wide JamesDSP implementation for non-rooted devicesGPL-3.0-or-later