
Description: Graph.tk is a free online graph and diagram creation tool that allows users to easily create flowcharts, uml diagrams, network diagrams, mockups, floor plans, and more. It has an intuitive drag and drop interface with various templates and shapes.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: A rule of 3 calculator is a simple tool used to solve proportional math problems. It allows you to enter 3 numeric values and calculates the 4th value based on the proportional relationship.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API