Security

Varengold activeTAN
2FA for online banking

Tinc App
Android binding and user interface for the tinc mesh VPN daemon

Privacy Indicators
Get notified every time an app or a service uses camera or microphone

KeePassDroid
KeePass-compatible password safe

andOTP
Time-based One-time Passwords (TOTP) from QR codes for two-factor authentication

Port Knocker
Port Knocker Client

Knock on Ports
Port knocking client

Watt
Disable or enable components(receivers/services/activities) easily

Password Generator (Privacy Friendly)
Generate passwords

TorServices (alpha)
The simplest, fastest, smallest Tor proxy app (early test release)

PayNoWay
Bitcoin wallet app made to test payment systems against double-spend attacks.

flutterhole
A third party application for the Pi-Hole® dashboard

FreedomBox
A companion app for your FreedomBox server

OpenKeychain: Easy PGP
Encrypt your Files and Communications. Compatible with the OpenPGP Standard.

Router Keygen YoloSec
Generate default WPA/WEP keys

Fake Contacts
Create fake phone contacts, for data-poisoning.

EteSync Notes - End-to-end Encrypted Notes
Secure, end-to-end encrypted, and privacy respecting note taking.

SQRL Login
An implementation for SQRL (Secure Quick Reliable Login)

EDS Lite
Virtual disk encryption

Greentooth
Automatic Bluetooth disabler

Disabler
Disable any applications, and easily enable it
with a pretty customisable launch

SshDaemon
Simpe ssh/sftp server without root.

Secur: Cross-platform 2FA client
A beautiful, cross-platform 2FA TOTP client written in Flutter

Password Master
Password Master generates and manages passwords in a secure encrypted database

EteSync - Secure Data Sync
Secure, private and end-to-end encrypted calendar, contacts and tasks sync

Skewy - anti eavesdropping
A tool to prevent eavesdropping and ultrasonic access of your smart phone.

Port Authority
Port scanner

BinderFuzzy - Pentest Android Services
An App intended for fuzzing the Binder interface and System Services of Android.

WiFiScanner
Analyse the WiFi networks in range.

Port Knocker
Port knocker client; supports one time sequences