
Description: Opal is an open-source alternative to Microsoft OneNote for taking notes and organizing information. It allows users to create digital notebooks to capture text, drawings, and web clippings.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: OmniOutliner is a versatile outlining and note-taking app for macOS. It allows users to organize ideas and information into hierarchical outlines that can be collapsed, expanded, and restructured as needed. Key features include flexible columns, inline notes, tags, hoist/de-hoist, and export options.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API