
Description: Zero Brush is a free and open-source digital painting program for Windows, macOS and Linux. It features a wide range of brushes, layers, filters and supports many file formats. It aims to provide a lightweight yet powerful painting app for digital artists.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Adobe Substance 3D Painter is a powerful texturing and painting software for 3D assets. It allows artists to quickly create realistic and complex materials and textures for 3D models and scenes.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API