PaperCript
Encrypted passwords on printable QR cards. No network, stores nothing.MIT
ShareAsQR
A lightweight app for QR code generation from text or sharing from other apps.MIT
QRAlarm
Disable alarms with a QR scannerGPL-3.0-only
QRshare
Generate QR codes on share intentApache-2.0
Colony Control
Management and tracking of ant colonies with NFC and QR.GPL-3.0-or-later
BodyCheck
Scan and visualize body composition QR codes from your gymGPL-3.0-only
Barcode Scanner
An open-source app that allows you to read and generate barcodes.GPL-3.0-only
MetroVault
Air-gapped Bitcoin signer for offline cold storage. QR-only, no network.GPL-3.0-or-later
Keycard Pal Offline
Sign Ethereum and Bitcoin by QR code with a Keycard NFC smart cardMIT
SubSonicSter
Play Hitster card game with your own SubSonic music serverMIT
Bimba
A public transport companion that’s FLOSS; a timetable in your pocket.GPL-3.0-or-later
Bitcoin Wallet [testnet3]
Testing version of BitcoinGPL-3.0-only
Bitcoin Wallet
Your own Bitcoins, in your own pocket!GPL-3.0-only
FreeOTP+
Two-factor authenticator (2FA) with one-time password protocols (OTP)Apache-2.0
Nextcloud Cookbook
View all your recipes stored in your Nextcloud instance.MIT
SecureYourChats
Text & File Encryption/Decryption with new OverlayTechnologyGPL-3.0-only
Clockwork: 2FA Authenticator
Offline 2FA authenticator: TOTP codes, no network permission, no accounts.MIT
HyleX (Entropy / Hyle 7)
Chaos against Order: An Entropy / Hyle 7 like board gameGPL-3.0-or-later
croc-app
Modern client for croc, easily and securely send files and textMIT
Dhizuku
A tool that can share Device Owner permissions to other applications.GPL-3.0-only