Mountain Duck
Depends
Confidence: Medium
Buy it if you need S3, SFTP, or B2 storage mounted as a real disk and native sync apps don't cover you.
Comparison
Mountain Duck and CloudMounter - Cloud Storage Manager both land on Depends.
Buy it if you need S3, SFTP, or B2 storage mounted as a real disk and native sync apps don't cover you.
Buy if you're an individual who wants Dropbox, Drive, OneDrive, or S3 mounted as Finder/Explorer drives and the files aren't mission-critical.
| Compare | Mountain Duck | CloudMounter - Cloud Storage Manager |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Freelancers mounting S3/SFTP/B2 as a disk | Mac users juggling multiple cloud accounts |
| Who it's not for | Anyone happy with native Dropbox/Drive/OneDrive clients | Anyone treating cloud files as critical . data-loss report exists |
| Privacy | Two high-severity 2025 CVEs around TLS certificate handling, since patched; no dedicated security page found. | No known public vulnerabilities found in the sources reviewed. |
| Support quality | Capterra customer service score 4.0/5 | 'Scam' complaints; unresolved data-loss report |
| Public sentiment | Users love cloud storage appearing as a local disk, but stability complaints and the pricing-model switch split sentiment sharply.⁷ | Mac App Store ratings are strong, but Reddit and Trustpilot carry serious data-loss and refund complaints. |
| Biggest gotcha | Pricing model flipped: App Store v5 is subscription; a forum thread calls the switch 'actual scam'10 | A Reddit user reports files 'permanently lost' . don't rely on it as sole access to critical data. |