14-day free trial on paid plans
Simple pricing,
powerful monitoring.
No hidden fees, no surprises. Choose the plan that fits your needs and scale as you grow.
Free
Try it out. No credit card required.
$0/mo
- Up to 10 monitors
- 5-minute check interval
- Uptime, response time + JSON/API monitoring
- SSL monitoring
- 1 public status page
- Email notifications
Starter
For freelancers managing a handful of client sites.
$12/mo
$144/year
- Monitor up to 25 endpoints
- 1-minute check interval
- SSL, DNS, domain, ping, port + heartbeat/cron monitoring
- Email + Slack alerts
- 5 client status pages
- Read-only API + MCP access
Pro
For agencies and teams managing client portfolios.
$24/mo
$288/year
- Monitor up to 100 endpoints
- 1-minute check interval
- Everything in Starter + keyword + Lighthouse audits
- Email, SMS, Slack + webhook alerts
- 1 team with up to 5 members
- 10 branded client status pages
- Full API + MCP access (AI assistants)
Business
For growing agencies with advanced client reporting.
$48/mo
$576/year
- Monitor up to 300 endpoints
- 30-second check interval
- Everything in Pro
- Unlimited teams and members
- Unlimited status pages
- Custom domain status pages
- Client-ready uptime reports
- Priority support
30-day money-back guarantee · no questions asked
The free plan needs no card. Paid plans start with a 14-day trial, and you can cancel anytime.
Compare plans
Every feature, side by side.
| Feature | Free | Starter | Pro | Business |
|---|---|---|---|---|
| Capacity | ||||
| Monitors | 10 | 25 | 100 | 300 |
| Check interval | 5 min | 1 min | 1 min | 30 sec |
| Team members | 1 | 1 | 5 | Unlimited |
| Monitor types | ||||
| HTTP / HTTPS uptime | ||||
| JSON response assertions | ||||
| SSL certificate monitoring | ||||
| DNS monitoring | — | |||
| Domain expiration | — | |||
| Ping (ICMP) | — | |||
| Port (TCP) | — | |||
| Heartbeat / cron jobs | — | |||
| Keyword monitoring | — | — | ||
| Notifications | ||||
| Slack | — | |||
| SMS | — | — | ||
| Webhooks | — | — | ||
| Quiet hours | ||||
| Status pages & client reports | ||||
| Public status pages | 1 | 5 | 10 | Unlimited |
| Password-protected pages | — | — | ||
| Custom domain status pages | — | — | ||
| SEO meta tags | — | — | — | |
| Remove Sentinel branding | — | — | — | |
| Client-ready uptime reports | — | — | — | |
| Scheduled email reports | — | — | — | |
| Platform | ||||
| Multi-region checks (4 regions) | ||||
| Incident management + timeline | ||||
| Desktop app (macOS menu bar) | — | |||
| Public API access | — | Read-only | Full | Full |
| AI assistant (MCP) | — | Read tools | Read + write | Read + write |
| Webhook signing (HMAC) | — | — | ||
| Priority support | — | — | — | |
Need something custom? Talk to us about Enterprise.
Need more? Let's talk.
For large agencies and enterprises with custom requirements: unlimited monitors, SSO, SLA guarantees, and dedicated support.
Instant setup
Get started in under 60 seconds. No complex configuration needed.
No hidden costs
What you see is what you pay. No surprise charges or overage fees.
Cancel anytime
No contracts, no commitments. Upgrade, downgrade, or cancel whenever you need to.
Can I change plans later?
Yes, you can upgrade, downgrade, or cancel your plan at any time from your account dashboard. Changes are prorated and reflected in your next billing cycle.
What payment methods do you accept?
We accept all major credit cards (Visa, Mastercard, American Express) via Stripe. For annual Business or custom Enterprise plans, we can also arrange invoicing and wire transfers.
Is there a free trial?
Yes. All paid plans start with a 14-day free trial: enter your payment details to get started and you won't be charged until the trial ends. Cancel anytime. The Free plan never requires a card.
Do you offer discounts for agencies?
Yes. Save around 20% with annual billing on any plan. We also offer discounts for registered non-profit organizations; contact support for details.