Reliability · last 90 days · from official status pages
Slack vs Zoom.
Slack has reported the least downtime — 13h 58m across 5 incidents in the last 90 days.
| Service | Uptime | Incidents | Downtime | Avg recovery | Longest |
|---|---|---|---|---|---|
| SlackOperational | 99.35% | 5 | 13h 58m | 2h 48m | 6h 18m |
| ZoomDegraded | 95.6% | 25 | 3d 22h | 3h 49m | 1d 1h |
"Uptime" = not reporting an incident on the official status page; incident history from each provider's published archive plus our live tracking since May 22, 2026. Reported numbers understate real-world impact — providers acknowledge incidents late and close them early — but they understate it for everyone equally, which is what makes the comparison fair. Live status: Slack · Zoom.
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