
Description: Zero is a minimalist number sliding puzzle game with a zen, meditative feel. Slide the tiles to combine numbers that add up to zero in each level. Simple, clean visuals and gameplay create a calming experience.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Tchisla is an open-source, cross-platform spreadsheet application with basic spreadsheet functionality like formulas, charts, and pivot tables. It aims to provide a free alternative to Microsoft Excel.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API