
Description: Simple Calculator is a free, easy-to-use calculator app for basic math calculations. It allows you to perform addition, subtraction, multiplication and division with numbers and provides a simple, clean interface.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Kalq is a free, open-source alternative to Photoshop. It is an image editing and graphic design software focused on photo retouching and compositing. Key features include layers, masks, filters and a full set of painting tools.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API