
Description: isUp is a free, open-source website monitoring tool that allows users to monitor the status of websites and servers. It checks if sites are up or down and sends notifications if there are any issues detected.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: UptimeRobot is a web monitoring service that allows users to monitor the uptime and performance of their websites and web applications. It provides uptime monitoring, page speed monitoring, and response time alerts.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API