PagerDuty - Cloud based monitoring service
Userfeed - Product feedback made for Intercom
OpsGenie - Alerting and On-Call Management for Dev&Ops Teams
Fider - Fider is an open source, cross platform and free to use customer feedback platform for companies...
Squadcast - Automate incident response, reduce downtime and enhance your tech teams’ delivery with a unified platform.
ClearFlask - Open-source Product Feedback Tool with a Public Roadmap and Announcements.