
Description: CheckIO is an online platform for learning and practicing programming through solving code challenges. It provides bite-sized coding puzzles of increasing difficulty that allow users to improve their coding skills in Python and JavaScript.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: HackerEarth is a technology hiring platform that helps companies conduct online coding tests to screen and hire developers. It provides an assessment software with features like online compilers, plagiarism detection, test automation, and analytics.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API