Therapy Practice Management Software · reliability comparison
SimplePractice vs Zanda (formerly Power Diary): which is more reliable? (2026)
Zanda (formerly Power Diary) is more reliable than SimplePractice, scoring 100.0 vs 85.1 out of 100. Over the last 90 days SimplePractice reported 7 incidents and Zanda (formerly Power Diary) reported 0, with effective uptime of 99.86% and 100% respectively.
Data updated Nov 1, 2026 · How we score
VS
| Metric | SimplePractice | Zanda (formerly Power Diary) |
|---|---|---|
| Reliability score | 85.1 | 100.0 |
| Rank (therapy practice management platforms) | #8 | — |
| Uptime (90 days) | 99.86% | 100% |
| Incidents (90 days) | 7 | 0 |
| Partial / major outages | 4 | 0 |
| Avg time to resolve | 1h 49m | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where SimplePractice and Zanda (formerly Power Diary) differ
- Zanda (formerly Power Diary) reported no incidents in the last 90 days, while SimplePractice reported 7.
- SimplePractice had 4 partial or major outages, compared with 0 for Zanda (formerly Power Diary).
90-day uptime
SimplePractice
Zanda (formerly Power Diary)
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent SimplePractice incidents
- InformationalOct 23, 2026 · resolved in <1m
- InformationalOct 13, 2026 · resolved in 1h
Affected: Main application
- Partial outageOct 6, 2026 · resolved in 1h 56m
Affected: Main application
- Partial outageSep 4, 2026 · resolved in 31m
Customers unable to create appointments
Affected: Main application
- Partial outageSep 1, 2026 · resolved in 34m
Unable to approve appointment requests
Affected: Main application
- Partial outageAug 31, 2026 · resolved in 1h 20m
Affected: Main application
Recent Zanda (formerly Power Diary) incidents
No incidents reported by Zanda (formerly Power Diary) in the last 90 days.
Other therapy practice management platforms to consider
- Cliniko · #1 · 100% uptime
- TheraNest (Ensora Health) · #2 · 100% uptime
- TherapyAppointment · #3 · 100% uptime
- Practice Better · #4 · 99.93% uptime
See the full most reliable therapy practice management software ranking →