
Description: Telegram is a cloud-based instant messaging and voice over IP service. It offers end-to-end encrypted video calling, file sharing, and several other features. Telegram clients exist for both mobile and desktop systems.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

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