Cronitor vs FireHydrant: What are the differences?
Developers describe Cronitor as "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. On the other hand, FireHydrant is detailed as "A simple incident response tool". FireHydrant allows you to maintain an organized log of incidents, the events that occurred during them, and integrations to lift information to the surface that matters.
Cronitor and FireHydrant can be primarily classified as "Monitoring Aggregation" tools.