
Description: Periodica is a free periodic table app for Windows, Mac and Linux. It includes detailed elemental data, electron configurations, orbital diagrams, and a quiz mode to test your knowledge.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Chemik is an open-source chemistry software suite for drawing chemical structures, analyzing spectral data, planning synthetic routes, and more. It provides a free alternative to expensive commercial chemistry software.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API