
Description: Open Sudoku is a free, open source Sudoku game and solver. It has a simple interface for playing Sudoku puzzles of varying difficulty, as well as tools for generating and solving Sudoku puzzles automatically.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Sudoku.Vip is a free online sudoku game website and app that allows users to play unlimited sudoku puzzles. It has various difficulty levels, lets you save puzzles, provides hints, and keeps track of time and errors.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API