
Description: aTalk is an open source, cross-platform alternative to Skype focused on accessibility. It has text-to-speech and speech-to-text features to aid communication for people with disabilities.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Hike Messenger is a free, cross-platform instant messaging app that allows users to exchange messages, photos, videos, stickers, audio clips and files. It offers features like hidden chats, offline messaging and supports group chats with up to 100 participants.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API