
Description: AptDiff is a free, open source software tool used to compare different package versions between Debian or Ubuntu systems. It helps administrators and developers identify changes between package versions and releases.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: WinDiff is a free visual file and directory comparison tool for Windows. It allows users to visually compare text files, HTML files, PDFs, Word documents, Excel spreadsheets, and directories side-by-side to see the differences highlighted.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API