
Description: Bettergram Messenger is a privacy-focused messaging app that aims to provide a secure alternative to mainstream messaging platforms. It offers end-to-end encryption, self-destructing messages, group chats, media sharing, and customizable privacy settings.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

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: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API