
Description: Briar is a peer-to-peer encrypted messaging app designed for activists, journalists, and people at risk of persecution. It allows secure communication without relying on a central server, making it resistant to surveillance and censorship.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Threema is a secure messaging app that emphasizes privacy and security with end-to-end encryption for all communications. It allows you to message and call other Threema users.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API