
Description: MathJournal is an open-source math journaling and note-taking software for students and teachers. It provides an intuitive interface for typing math notation and equations, along with text, images, and drawings. Useful for organizing notes and keeping a record of math problem-solving.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: R is a free, open-source programming language and software environment for statistical analysis, data visualization, and scientific computing. It is widely used by statisticians, data miners, data analysts, and data scientists for developing statistical software and data analysis.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API