
Description: PaintTool SAI is a lightweight digital painting app for Windows. It has customizable brushes, layers, and canvas rotation for creating digital artwork. The interface is simple and intuitive for quickly sketching ideas.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: SketchPort is a browser-based wireframing and prototyping tool used to design and mockup websites and mobile apps. It allows users to easily drag-and-drop elements to create sitemaps, wireframes, and interactive prototypes.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API