
Description: Viber is a free messaging and calling app for smartphones. It uses your phone number to connect you with people in your contacts and allows free calls, texts, photos and video messages over WiFi.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: GAM Messenger is a free, ad-free messaging app for Android and iOS that focuses on privacy and security. It offers encrypted messaging, disappearing messages, contact blocking, and does not collect or sell user data.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API