
Description: Google Duo is a video chat mobile app developed by Google. It allows users to make video calls in high definition between Android and iOS devices. Key features include Knock Knock which shows live video of the caller before answering, end-to-end encryption, and the ability to switch between Wi-Fi and cellular data during calls.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: WhatsApp is a popular cross-platform instant messaging and voice over IP service owned by Meta. It allows users to send text messages, voice messages, video calls, images, documents and user location free over an internet data connection.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API