
Description: Mercury Messenger is a messaging app for mobile devices that allows users to send private, encrypted messages and make voice and video calls. It has a minimalist interface focused on privacy.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: KakaoTalk is a free mobile instant messaging app with free calls and video chats. It allows users to send messages, photos, videos and voice messages to friends and groups. KakaoTalk is popular in Asia, especially South Korea.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API