Cloud Storage & Office Suites · reliability comparison
Dropbox vs Microsoft 365: which is more reliable? (2026)
Microsoft 365 is more reliable than Dropbox, scoring 100.0 vs 85.5 out of 100. Over the last 90 days Dropbox reported 3 incidents and Microsoft 365 reported 0, with effective uptime of 99.88% and 100% respectively.
Data updated Nov 1, 2026 · How we score
| Metric | Dropbox | Microsoft 365 |
|---|---|---|
| Reliability score | 85.5 | 100.0 |
| Rank (cloud storage & office suites) | #5 | — |
| Uptime (90 days) | 99.88% | 100% |
| Incidents (90 days) | 3 | 0 |
| Partial / major outages | 1 | 0 |
| Avg time to resolve | 4h 54m | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Dropbox and Microsoft 365 differ
- Microsoft 365 reported no incidents in the last 90 days, while Dropbox reported 3.
- Dropbox had 1 partial or major outage, compared with 0 for Microsoft 365.
90-day uptime
Dropbox
Microsoft 365
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Dropbox incidents
- Partial outageSep 9, 2026 · resolved in 59m
Some customers are unable to access certain website routes and features.
Affected: Website
- Degraded performanceAug 25, 2026 · resolved in 11h 47m
Some Dropbox Protect features are not working correctly
Affected: Protect
- Degraded performanceAug 21, 2026 · resolved in 1h 55m
Dropbox is not working as expected for some users
Affected: Desktop Application, Mobile Application, API
Recent Microsoft 365 incidents
No incidents reported by Microsoft 365 in the last 90 days.
Other cloud storage & office suites to consider
- Tresorit · #1 · 100% uptime
- SugarSync · #2 · 100% uptime
- ShareFile · #3 · 99.99% uptime
- Egnyte · #4 · 99.94% uptime
See the full most reliable cloud storage & office suites ranking →