Security

Tinc App

Android binding and user interface for the tinc mesh VPN daemon

Briar

Secure Messaging, Anywhere

TrackerControl

TrackerControl allows to monitor and control hidden data collection in apps.

Amarok

Hide your private Files and APPs with a single click.

ANOTHERpass

Another way to manage passwords

Yubico Authenticator

Generate OATH codes with YubiKey NEO over NFC

KeePassDX

Secure and open source password manager compatible with KeePass files.

IRMA

Authentication made easy, privacy-friendly, and secure

OpenContacts

A different database for contacts to keep them private only to you.

Passy - cross-platform password manager

Offline password manager with cross-platform synchronization

PCAPdroid

No-root network monitor and traffic dump tool for Android devices

i2pd

Full-featured C++ implementation of I2P client

I2P

I2P anonymous network

Rethink: DNS + Firewall

Firewall apps, monitor network activity, block malware, change DNS.

Exodus

Exodus show you trackers and permissions in apps installed on your device.

Photok

Encrypt your photos on your device and keep them safe from others.

Flipper Mobile App

Organize data and keys on your Flipper Zero device

Cryptographic ID

Attest the trustworthiness of a device using asymmetric cryptography

Secret Space Encryptor (SSE)

File Encryption, Text Encryption (Messages, Notes, …), Secure Password Manager

OpenKeychain: Easy PGP

Encrypt your Files and Communications. Compatible with the OpenPGP Standard.

Safe Notes - Encrypted Notepad

Encrypted, Private note manager

sNotz

An open-source and completely offline application to manage simple notes

LessPass

Generate unique passwords for your accounts based on a master password

SshDaemon

Simpe ssh/sftp server without root.

OONI Probe

Open Observatory of Network Interference (OONI)

Hypatia

A real-time malware scanner

e-Passport Reader

use the NFC chip to communicate with an electronic passport

Aegis Authenticator

Free, secure and open source 2FA app to manage tokens for your online services

OUI Lookup and Database

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

XPrivacyLua

Really simple to use privacy manager for Marshmallow (6.0) and later