Proton Drive Review 2026: Private Cloud Storage Worth Switching To?
Proton Drive is the most private cloud storage service available — end-to-end encrypted, open-source, and based in Switzerland. It's not as feature-rich as Google Drive or OneDrive yet, but for users who want to ensure nobody else can access their files, it's the right choice.
Most cloud storage services — Google Drive, OneDrive, Dropbox — can technically read the files you store with them. They’re encrypted in transit and at rest, but the provider holds the encryption keys. Proton Drive takes a different approach: your files are encrypted before they leave your device, and only you hold the keys.
What Makes Proton Drive Different
Standard cloud storage encrypts your files to protect them from hackers — but the provider can still access them. This matters when you consider that Google uses file content to improve its products, and that US-based providers can be compelled to hand over data under laws like the CLOUD Act.
Proton Drive uses end-to-end encryption, meaning:
- Files are encrypted on your device before upload
- Only you (and people you explicitly share with) can decrypt them
- Proton’s servers store only encrypted data
- Swiss law governs data requests
Features
Desktop Sync
Proton Drive has sync apps for Windows and macOS. Once installed, a Proton Drive folder appears on your computer and syncs automatically — just like Google Drive or OneDrive. Files are encrypted before upload; the sync process is transparent to the user.
File Sharing
You can share files and folders with other Proton users (with full end-to-end encryption) or generate password-protected links for external recipients.
Proton Docs
Proton recently launched Proton Docs — a basic collaborative document editor built into Drive. It’s not as feature-complete as Google Docs, but it works, it’s end-to-end encrypted, and it’s improving.
Mobile Apps
iOS and Android apps let you access, upload, and manage files on the go. Auto-backup for photos is available on mobile.
Pricing
| Plan | Price | Storage |
|---|---|---|
| Free | £0 | 1 GB |
| Drive Plus | ~£3.99/month | 200 GB |
| Proton Unlimited | ~£7.99/month | 500 GB + Mail + VPN + Pass |
| Proton Business | ~£6.99/user/month | 1 TB per user |
The Proton Unlimited bundle is excellent value if you want the full ecosystem — email, VPN, password manager, and cloud storage in one privacy-respecting package.
What Could Be Better
- Storage on free plan — 1 GB is very limited; Google Drive gives 15 GB free
- Collaboration — Proton Docs is improving but not yet at Google Docs’ level for complex documents
- Third-party integrations — no native integration with tools like Slack, Zapier, or Microsoft 365
- Version history — available but less generous than Google Drive on lower plans
- Offline access — desktop sync works well, but offline access on mobile is limited
Who Should Use Proton Drive
- Users storing sensitive documents (legal, financial, medical, personal)
- Small businesses handling confidential client files
- Users already in the Proton ecosystem
- Anyone who wants cloud storage they know nobody else can read
For general file collaboration in a business that already uses Microsoft 365 or Google Workspace, staying with those platforms is often more practical. Proton Drive is the right choice when privacy of stored content is the priority.
Verdict
Rating: 4/5
Proton Drive is the most private cloud storage service available. End-to-end encryption by default, Swiss jurisdiction, open-source apps, and a growing feature set. The free tier is limited, and it’s not yet as feature-rich as Google Drive for collaboration — but for secure file storage, it’s the best option available.