Appointment Scheduling Software · reliability comparison
Cal.com vs Chili Piper: which is more reliable? (2026)
Cal.com is more reliable than Chili Piper, scoring 86.2 vs 60.6 out of 100. Over the last 90 days Cal.com reported 3 incidents and Chili Piper reported 1, with effective uptime of 100% and 99.44% respectively.
Data updated Nov 1, 2026 · How we score
| Metric | Cal.com | Chili Piper |
|---|---|---|
| Reliability score | 86.2 | 60.6 |
| Rank (scheduling apps) | #6 | #8 |
| Uptime (90 days) | 100% | 99.44% |
| Incidents (90 days) | 3 | 1 |
| Partial / major outages | 2 | 1 |
| Avg time to resolve | — | 23h 53m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Cal.com and Chili Piper differ
- Cal.com reported 3× as many incidents as Chili Piper over the last 90 days (3 vs 1).
- Cal.com had 2 partial or major outages, compared with 1 for Chili Piper.
90-day uptime
Cal.com
Chili Piper
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Cal.com incidents
- Partial outageOct 24, 2026 · resolved (duration not published)
Resolved - Identified - Issues with Enterprise SAML Authentication
- Degraded performanceSep 15, 2026 · resolved (duration not published)
- Major outageAug 31, 2026 · resolved (duration not published)
Resolved - Major outage: We resolved an issue impacting the API - https://api.cal.com/
Recent Chili Piper incidents
- Partial outageSep 15, 2026 · resolved in 23h 53m
Gong connectivity issuesofficial update ↗
Affected: Gong
Other scheduling apps to consider
- Calendly · #1 · 100% uptime
- Doodle · #2 · 100% uptime
- SavvyCal · #3 · 100% uptime
- Sign In Scheduling (formerly 10to8) · #4 · 100% uptime
See the full most reliable appointment scheduling software ranking →