
Description: Project Euler is a website dedicated to a series of computational problems intended to be solved with computer programs. The problems involve mathematics and logic puzzles that require knowledge of math and programming to solve.
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