Description: GeoGebra is free and open-source dynamic mathematics software for all levels of education. It combines geometry, algebra, spreadsheets, graphing, statistics and calculus in one easy-to-use package. It can be used to teach math from elementary through university level.
Type: software
Pricing: Open Source
Description: Testpad is an online web application meant for collaborative software testing and quality assurance. It allows teams to manage QA workflows including test case writing, bug tracking, and report generation.
Type: software