Security

ente Authenticator
ente is an end-to-end encrypted authenticator app

Cryptographic ID
Attest the trustworthiness of a device using asymmetric cryptography

WG Tunnel
An alternative VPN client app for WireGuard with additional features

IYPS
A password strength test app with crack times, warnings and suggestions.

ESUP-NFC-TAG-DROID
ESUP-NFC-TAG-DROID works as a client of an ESUP-NFC-TAG server.
Android 5 (or +)

Mullvad VPN: privacy is a universal right
Protect your online privacy with a fast, trustworthy, and easy-to-use VPN.

SshDaemon
Simpe ssh/sftp server without root.

KeePassDX
Secure and open source password manager compatible with KeePass files.

Yivi
Your digital identity in one app.

OUI Lookup and Database
Find a device's manufacturer by its MAC address and browse OUIs assignments

ANOTHERpass
Another way to manage passwords

e-Passport Reader
use the NFC chip to communicate with an electronic passport

OpenDNS Updater
OpenDNS Updater is an extremely easy to use android app to perform IP updates.

AirGuard - AirTag protection
Protect yourself from Apple's Find My Tracking

PasswdSafe
Port of PasswordSafe password manager

NetGuard
A simple way to block access to the internet per application

Riseup VPN
Secure VPN powered by Bitmask

Bitmask
Encrypted communication for mere mortals(superheroes welcome, too).

InviZible Pro: increase your security, protect you
Comprehensive application for on-line privacy and security

LibrePass
Take control of your passwords

Amarok
Hide your private Files and APPs with a single click.

Standard Notes
An end-to-end encrypted note-taking app for digitalists and professionals

Mauth
A Material You Two-factor Authentication app.

Flipper Mobile App
Organize data and keys on your Flipper Zero device

OONI Probe
Open Observatory of Network Interference (OONI)

PIN Mnemonic (Privacy Friendly)
Helps you to memorize PIN codes

Briar
Secure Messaging, Anywhere

Stingle Photos
Stingle Photos is a secure, end-to-end encrypted gallery and sync app

Safe Space
A safe space for your digital valuables.

SelfPrivacy
Self-hosted services without pain