Free
Free
up to 10 monitors · 5-minute checks · uptime, SSL, DNS, domain, keyword, ping, port, JSON/API and server-error checks · 1 public status page · email, Discord and Telegram alerts · API, CLI, Terraform, MCP · macOS app
Checked 15 Oct 2026
Plans and prices
Sentinel pricing
Starter
$14 a month
up to 25 monitors · 1-minute checks · heartbeat/cron monitoring · Slack and Teams alerts · US/Canada SMS · 5 client status pages
Checked 15 Oct 2026
Pro
$29 a month
up to 100 monitors · Lighthouse audits · signed webhooks · one team with up to 5 members · 10 branded status pages · custom-domain status pages
Checked 15 Oct 2026
Business
$79 a month
up to 300 monitors · 30-second checks · PagerDuty · unlimited teams and members · unlimited status pages · client-ready uptime reports · priority support
Checked 15 Oct 2026