Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
From $7 per month (indicative, Solo)
Free tierFrom $0.04 per hour per 8 GiB host (full-stack, indicative)
PaidWhat drives the bill
The metric that actually scales your invoice.
One of the best free tiers in infrastructure tooling; paid plans are still inexpensive.
Consumption-based pricing across hosts, synthetic requests, RUM sessions and log volume. Enterprise contracts are large.
Free tier
50 monitors at 5-minute intervals, free forever.
15-day trial.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Widely used
UptimeRobot · since 2010
Widely used
Dynatrace · since 2005
Strengths
Limitations
Best for
Side projects, small businesses and anyone who currently has no monitoring at all.
Large enterprises with complex hybrid estates and a dedicated SRE or operations team.
All of these integrate with: Slack.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.