ServiceAlert.ai vs IsDown
IsDown tracks third-party status well. ServiceAlert adds uptime, certs, vulns, and incident management.
What IsDown does well
- Large catalog (~6,320 services)
- Chrome extension for always-visible status
- Published "outages caught early" stats as a trust signal
- Per-workspace seat limits on Business tier
Where ServiceAlert.ai wins
When to pick IsDown instead
If you only need third-party status aggregation for a small team and Chrome-extension visibility matters more than an integrated security bundle. IsDown is a focused product; ServiceAlert is a platform.
The bundle math
ServiceAlert.ai is designed as a platform: the $249/mo Business plan gives you uptime monitoring, third-party vendor status aggregation, certificate lifecycle, status pages, and incident management in one login. To reach that capability footprint with IsDown, you'd need to stack it with three to four other products. See the methodology page for the cited numbers we use in our stack-replacement comparison.
Last reviewed: 27 April 2026. We update these pages when pricing or capabilities change. If something's stale, email support@servicealert.ai.