
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: Isotoxin is an open-source load and performance testing tool for web applications. It allows developers to simulate user traffic to measure system load, identify bottlenecks, and ensure scalability. Key features include record and playback of user journeys, custom scripting, distributed testing, and detailed reporting.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API