
Description: Mastodon is an open-source, decentralized social media platform similar to Twitter. It allows users to post 'toots' of up to 500 characters to followers within a federated network of independently operated servers.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Addamate is a free, open-source software designed for efficient and automated mate calculations in chess. It uses advanced heuristics and pruning techniques to deeply analyze chess positions and suggest the best moves and continuations.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API