
Description: Wassapp is a free, open-source messaging app for Android and iOS that focuses on privacy and security. It offers encrypted messaging with other Wassapp users as well as voice and video calling. As an alternative to WhatsApp, Wassapp does not collect user data or require a phone number to sign up.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Signal is a free, open source, encrypted messaging and voice calling app. It offers end-to-end encryption for secure communication. With Signal, users can send encrypted messages, make voice and video calls, and share media with individuals or groups.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API