PagerDuty - Cloud based monitoring service
Userfeed - Product feedback made for Intercom
VictorOps - We make on-call suck less & help teams to solve problems faster.
Fider - Fider is an open source, cross platform and free to use customer feedback platform for companies...
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
ClearFlask - Open-source Product Feedback Tool with a Public Roadmap and Announcements.