Side-by-side comparison based on expert reviews and community consensus.
Microsoft OneDrive
Best for Microsoft UsersProton Drive
Best for PrivacyPrice
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Summary
The top pick for anyone in the Microsoft ecosystem — bundled with Microsoft 365, it offers seamless Office integration and a rare five-star rating from PCMag. Reddit consistently recommends it as a reliable mainstream option.
End-to-end encrypted storage governed by strict Swiss privacy laws — the go-to pick when security is non-negotiable. PCMag calls it the best-in-class for security among all tested services.
Pros
- Bundled with Microsoft 365 — effectively free for existing subscribers
- Deep integration with Word, Excel, PowerPoint
- Excellent mobile apps and strong security options per PCMag
- Consistently cited by Reddit as one of the most reliable mainstream services
- End-to-end encryption with zero-knowledge architecture
- Governed by strict Swiss privacy laws
- 1TB plan praised by Reddit users as reliable and fast
- Part of the broader Proton ecosystem (Mail, VPN, Calendar)
Cons
- Syncing issues on Windows have been reported by some users
- Less useful if you're not in the Microsoft ecosystem
- Free tier only 5GB
- Slower upload speeds compared to Google Drive per user reports
- Fewer third-party app integrations than Google or Dropbox
- Free tier is limited at 1GB
Our take
If you use Windows and Office, OneDrive is already half-set-up for you. It's the most frictionless option for the majority of PC users.
If you don't trust Big Tech with your files, Proton Drive is the answer. Swiss jurisdiction and zero-knowledge encryption mean even Proton can't read your data.
Buy
