Appointment Scheduling Software · reliability comparison
OnceHub vs Sign In Scheduling (formerly 10to8): which is more reliable? (2026)
Sign In Scheduling (formerly 10to8) is more reliable than OnceHub, scoring 100.0 vs 74.8 out of 100. Over the last 90 days OnceHub reported 2 incidents and Sign In Scheduling (formerly 10to8) reported 0, with effective uptime of 99.67% and 100% respectively.
Data updated Nov 1, 2026 · How we score
| Metric | OnceHub | Sign In Scheduling (formerly 10to8) |
|---|---|---|
| Reliability score | 74.8 | 100.0 |
| Rank (scheduling apps) | #7 | #4 |
| Uptime (90 days) | 99.67% | 100% |
| Incidents (90 days) | 2 | 0 |
| Partial / major outages | 2 | 0 |
| Avg time to resolve | 7h 8m | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where OnceHub and Sign In Scheduling (formerly 10to8) differ
- Sign In Scheduling (formerly 10to8) reported no incidents in the last 90 days, while OnceHub reported 2.
- OnceHub had 2 partial or major outages, compared with 0 for Sign In Scheduling (formerly 10to8).
- OnceHub's longest outage on record lasted 2d 15h (Jun 3, 2026); Sign In Scheduling (formerly 10to8)'s lasted 3h 39m (Jan 23, 2026).
90-day uptime
OnceHub
Sign In Scheduling (formerly 10to8)
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent OnceHub incidents
- Partial outageSep 8, 2026 · resolved in 13h 25m
Ongoing maintenance with one of our service providers is causing delays in the delivery of SMS two-factor authentication (2FA) codes, which official update ↗
Affected: User Application
- Partial outageAug 26, 2026 · resolved in 50m
We have identified an issue related to signing in using Microsoft or Google.
Affected: User Application
Recent Sign In Scheduling (formerly 10to8) incidents
No incidents reported by Sign In Scheduling (formerly 10to8) in the last 90 days.
Full Sign In Scheduling (formerly 10to8) reliability report →
Other scheduling apps to consider
- Calendly · #1 · 100% uptime
- Doodle · #2 · 100% uptime
- SavvyCal · #3 · 100% uptime
- YouCanBookMe · #5 · 100% uptime
See the full most reliable appointment scheduling software ranking →