
Description: Theunknowncall is a VoIP and video calling software that provides free, encrypted communication. It is open-source, cross-platform, and focused on security and privacy.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: CallerPy is an open-source caller ID and phone number lookup software. It allows users to identify unknown callers, block robocalls and telemarketers, and get detailed information on any phone number.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API