statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.
SpeakPipe - SpeakPipe is a tool enabling organizations to receive voice messages from the audience directly on the website.
StatusPage.io - StatusPage.io is the best way for web infrastructure, developer API, and SaaS companies to get set up with their very own status page in minutes. Integrate public metrics and allow your customers to subscribe to be updated automatically.
UserIQ - UserIQ combines user intelligence, customer health, and targeted engagements to help you deliver what each customer needs to be successful.
UptimeRobot - Free Website Uptime Monitoring
Wiremo - Get a Free, easy to setup customer reviews widget for e-commerce and classic website. Improve Google SERP with user-generated content. 14-days Free Trial.