IsDown and Outage Clock, compared honestly
5 vendors free, no expiry.
IsDown is a status page aggregator with uptime monitoring, SSL checks, status pages and a long integration list. Outage Clock focuses on vendor alerts. Numbers below come from the IsDown pricing page on 16 Oct 2026.
Side by side
| Outage Clock | IsDown | |
|---|---|---|
| Free option | Free plan, 5 vendors, no time limit | 14-day free trial |
| Entry plan | Starter, $19/mo, 30 vendors | Pro, $49/mo, 30 monitors |
| Mid plan | Pro, $49/mo, 150 vendors | Premium, $99/mo, 70 monitors |
| Top self-serve plan | Business, $99/mo, unlimited vendors | Business, $179/mo, 150 monitors |
| Annual discount | Two months free | About 20% |
| Uptime monitoring of your own sites | No | Yes, counted in monitors |
| Status pages | One private dependency page on Pro | 2 to unlimited by plan |
| Chat alerts | Slack, Teams | Slack, Teams, Google Chat, Discord |
| Incident tool integrations | Generic webhook | Datadog, PagerDuty, Opsgenie and more on higher plans |
| API | Business | Listed on plans |
Where IsDown wins
More integrations, public and private status pages, uptime and SSL monitoring for your own services, and an MCP server. If you want one tool that covers vendors and your own endpoints, IsDown does more.
Where Outage Clock wins
Price per vendor. Thirty vendors cost $19 with us and $49 on IsDown's entry plan. A free plan that does not expire. A simpler product if vendor alerts are all you need.
FAQ
Can I monitor my own website with Outage Clock?
No. For that, see Outage Page, our status page product with built-in checks.
Do monitors and vendors mean the same thing?
Roughly. IsDown counts third-party and uptime monitors together. We count vendors you follow.