Security

Knock on Ports
Port knocking client

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

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

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

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

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

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

Port Knocker
Port knocker client; supports one time sequences

OkcAgent
Make OpenKeychain available in your Termux shell

TinyKeePass
Another simple read-only KeePass app

Derandom
Pseudo random number predictor

PrivacyBreacher
showcase privacy issues in Android

NextcloudPasswords
Manage your Nextcloud passwords

SimpleTextCrypt
Encrypts plain text using AES256

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

Encrypt Text
Minimalistic application to encrypt plain text using AES 256

StartFlagExploit
Affected Android versions: Android 10 / Android 11

Hash Droid
Verify file integrity

DuOTP
Log in to Duo-protected services with any standard OTP app

CloudMare
Small & Simple Cloudflare tool