
Description: CDRViewer 3 is a free tool for viewing call detail records and call logs from various telephone systems. It can open many proprietary formats to analyze call data and generate reports.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Visio Viewer is a free program that allows you to view Visio diagrams and templates. It does not allow editing diagrams, it is read-only. Useful for sharing Visio files when the full Microsoft Visio software is not available.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API