
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: Gnome Chemistry Utils is a free open-source software for viewing and analyzing chemical structures and data. It includes features like a molecule viewer and editor, spectral analysis tools, periodic table, and computational chemistry plugins.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API