Cronitor vs PagerDuty: What are the differences?
Cronitor: Monitor cron jobs, daemons and almost anything else. Monitoring systems are often complex and require a strong sysadmin background to properly configure and maintain. Cronitor replaces all this with a simple service that anyone can set up. Receive email/sms notifications if your jobs don't run, run too slow, or finish too quickly; PagerDuty: Incident management with powerful visibility, reliable alerting, and improved collaboration. PagerDuty is an alarm aggregation and dispatching service for system administrators and support teams. It collects alerts from your monitoring tools, gives you an overall view of all of your monitoring alarms, and alerts an on duty engineer if there's a problem.
Cronitor and PagerDuty belong to "Monitoring Aggregation" category of the tech stack.