
Description: dworksheets.com is an online portal for creating, sharing, and using math worksheets. Teachers can quickly build customized worksheets for their students. The worksheets can include various types of questions and accommodate different ability levels.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: 2x2 is a brain training app that helps improve concentration, memory, calculation skills, and reaction time through simple yet challenging math-based mini games. It tracks your progress and adapts games to your skill level.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API