Appointment Scheduling Software · monthly outage report
Appointment Scheduling Software outages: September 2025
The 13 scheduling apps we track reported 10 incidents in September 2025. Acuity Scheduling reported the most (8). 10 had a clean month: Cal.com, Calendly, Doodle, OnceHub, SavvyCal, Setmore, Sign In Scheduling (formerly 10to8), SimplyBook.me, Square Appointments, Zoho Bookings.
| Vendor | Incidents | Partial / major |
|---|---|---|
| Acuity Scheduling | 8 | 4 |
| Chili Piper | 1 | 1 |
| YouCanBookMe | 1 | 0 |
| Cal.com | 0 | 0 |
| Calendly | 0 | 0 |
| Doodle | 0 | 0 |
| OnceHub | 0 | 0 |
| SavvyCal | 0 | 0 |
| Setmore | 0 | 0 |
| Sign In Scheduling (formerly 10to8) | 0 | 0 |
| SimplyBook.me | 0 | 0 |
| Square Appointments | 0 | 0 |
| Zoho Bookings | 0 | 0 |
Longest Appointment Scheduling Software outages in September 2025
Current most reliable appointment scheduling software ranking →