Cloud Storage & Office Suites · reliability comparison
Dropbox vs Proton Drive: which is more reliable? (2026)
Dropbox is more reliable than Proton Drive, scoring 85.5 vs 77.0 out of 100. Over the last 90 days Dropbox reported 3 incidents and Proton Drive reported 3, with effective uptime of 99.88% and 99.65% respectively. Proton Drive resolves incidents faster on average (3h 11m).
Data updated Nov 1, 2026 · How we score
| Metric | Dropbox | Proton Drive |
|---|---|---|
| Reliability score | 85.5 | 77.0 |
| Rank (cloud storage & office suites) | #5 | #7 |
| Uptime (90 days) | 99.88% | 99.65% |
| Incidents (90 days) | 3 | 3 |
| Partial / major outages | 1 | 3 |
| Avg time to resolve | 4h 54m | 3h 11m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Dropbox and Proton Drive differ
- Proton Drive had 3 partial or major outages, compared with 1 for Dropbox.
- Proton Drive fixes problems faster: 3h 11m on average, against 4h 54m for Dropbox.
- Dropbox's longest outage on record lasted 1h 11m (Nov 14, 2025); Proton Drive's lasted 4h 27m (Jan 16, 2026).
90-day uptime
Dropbox
Proton Drive
- 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 Proton Drive incidents
- Major outageOct 2, 2026 · resolved in 3h 17m
MacOS Certification Errors on the Proton Meet & Proton Mail appsofficial update ↗
Affected: Mobile and Desktop Apps, Desktop Apps
- Partial outageSep 1, 2026 · resolved in 4h 8m
Service disruptionofficial update ↗
Affected: Web Application, Free servers, Mobile Apps, Web Application, Mobile Apps, Web Application +20 more
- Major outageAug 26, 2026 · resolved in 2h 9m
Global Outageofficial update ↗
Affected: Web Application, Free servers, Mobile Apps, Web Application, Mobile Apps, Incoming Mail +18 more
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 →