
Description: Screen Calipers is a screen ruler app used for measuring sizes and distances on a computer screen. It provides digital calipers, protractors, rulers, and other tools for precise on-screen measurements.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: JR Screen Ruler is a free on-screen pixel ruler for Windows. It allows you to accurately measure objects on your screen in pixels, centimeters, or inches. Useful for web designers and developers.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API