
Description: Randoku is a free, open-source Sudoku puzzle generator. It creates randomized, solvable Sudoku boards of varying difficulty levels that can be printed or used in games and apps. Randoku uses constraint programming algorithms to ensure logically valid puzzles.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Highlights is a web browser extension that allows users to highlight, annotate, organize and collect information from web pages. It serves as both a highlighter and web clipper.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API