Tox - Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.

Calendar Lock PEA - Calendar Lock PEA is an encrypted desktop calendar with a day, week and month view. The shown calendars are never stored unencrypted on your disk, but exist only in the RAM. Platform-independent, Open Source, no installation or registration required.

Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.

Maadly - Maadly is a social networking app where users share snippets of their everyday lives to others from...

uTox - µTox is the lightweight client with minimal dependencies; it not only looks pretty, it runs...

Day by Day Organizer - Time management app that combines Google Calendar and Google Tasks and enhances their features.