Intra

Encrypted DNS clientApache-2.0

MegaProxy

VPN with HTTPS/SSH jump hosts, SOCKS5, MASQUE and split tunnelingMIT

Picocrypt-NG

Paranoid, offline file encryption with XChaCha20 and Argon2id.GPL-3.0-only

PaperPhoneLite

Encrypted messaging through self-hosted Tor onion servicesAGPL-3.0-only

NotePad

Make notesGPL-3.0-only

Okanzo

Private, offline-first net worth tracker with on-device encryptionMIT

EteSync - Secure Data Sync

Secure, private and end-to-end encrypted calendar, contacts and tasks syncGPL-3.0-only

To Do

Create checklistsGPL-3.0-only

Secret Space Encryptor (SSE)

File Encryption, Text Encryption (Messages, Notes, …), Secure Password ManagerGPL-3.0-only

Filewall: Secure Storage Provider

A file firewall: choose which apps may read, write or list your files.GPL-3.0-only

OTG Master

Mount VeraCrypt and LUKS encrypted USB drives on non-rooted AndroidGPL-2.0-or-later

User-controlled decryption operations

Emulates a smart card and lets you control the decryption operationsGPL-3.0-or-later

Material Notes

Simple, local, material design notesAGPL-3.0-or-later

37C3 Wifi Setup

Official NOC application for connecting to the 36C3 Wi-FiApache-2.0

Conversations

Encrypted, easy-to-use XMPP instant messenger for your mobile deviceGPL-3.0-only

MorseLightCrypt

Morse code by flashlight and camera, optionally encrypted. No network.MIT

Cryptocam - encrypting camera app

Take encrypted photos and video to protect sensitive information.GPL-3.0-or-later

Tane

Your seed bank in your pocket — offline, encrypted, no account.AGPL-3.0-or-later

Socks5 Proxy

Socks5 client based on VPNMIT

Proton VPN - Secure and Free VPN

Free Swiss VPN with advanced security and privacy features.GPL-3.0-only