
Description: Viber is a free messaging and calling app for smartphones. It uses your phone number to connect you with people in your contacts and allows free calls, texts, photos and video messages over WiFi.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Skype Lite is a free video calling and chat app optimized for low-speed networks. It provides high-quality video and voice calls along with instant messaging on 2G and 3G networks. Key features include easy contact syncing, notifications, SMS integration, and data usage control.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API