Sentinel Watch does not sell a Solo, Team, or Scale plan. The hosted product is $0. You get 50 monitors by default, a 5-minute check interval, email alerts, public status pages, and about 30 days of check history. We do not hide a credit-card wall behind “Start trial,” and we do not list SMS or Slack as included features because those backends are not built. If you need 30-second multi-region checks, buy a specialist — this page exists so you can decide that in one read.
Everyone
$0
per month, no billing account
This is an indie hosted monitor, not a billed SaaS with seat packs. Everyone gets the same features. If we add paid tiers later, existing free limits will stay documented here instead of being quietly reduced.
New accounts can create 50 monitors. That matches the well-known UptimeRobot free-tier number, so hobby sites and small projects are covered. An administrator can raise the limit for a specific email if you are not abusing the service.
No, because those channels are not implemented. Alerts go to the login email. We will not list Slack or SMS on this page until those channels actually ship.
You get an explicit message in the product — not an empty or fake-healthy screen. Live checks and email alerts are designed to keep running when possible.
If a limit blocks you, the product says so in the UI — no silent empty dashboard.
Start monitoring