Better Uptime vs Prometheus

Better Uptime (now part of Better Stack) is a website and infrastructure monitoring service that checks uptime every 30 seconds from multiple global locations. It provides incident management, on-call scheduling, and public status pages.

Prometheus is Open-source time-series database and monitoring system designed for reliability, using a pull-based metrics collection model with PromQL for querying.. It is available under a free model. This tool falls under the monitoring category.