Quick answer: The strongest Proton Drive alternatives are pCloud, Sync.com and Dropbox. pCloud is the closest match for most users; the others trade off on price, features or focus. All 6 are compared below on pricing, strengths and best use case.
Proton Drive is a solid cloud storage tool — Swiss end-to-end encrypted drive inside the Proton privacy suite (Mail, VPN, Calendar, Pass), open-source and audited. But perhaps you've hit a limit, or simply want to compare before committing. Here are the strongest alternatives worth a look, with what sets each apart.
Each option below works in the same broad space as Proton Drive; the right swap depends on which trade-off matters most to you.
End-to-end zero-knowledge encryption by default on all plans, Canadian/GDPR jurisdiction, marketed as a private Dropbox replacement. Consider it if privacy is your priority.
A private Dropbox replacement with zero-knowledge encryption applied to every plan by default.
Stands out for:
End-to-end zero-knowledge encryption by default on all plans, including free
AES-256 file encryption with RSA-2048 protected keys
30-day (or longer on higher tiers) file version history
Pricing: Free 5GB; ~$8/mo (billed yearly, ~$96/yr) 2TB Solo Pro; Teams tiers higher · Best for: privacy, secure-file-sharing
Best-in-class file sync reliability and the broadest third-party integration ecosystem, with strong collaboration features. Consider it if file-sync is your priority.
The benchmark for reliable file sync and the deepest third-party app integration ecosystem.
Stands out for:
Best-in-class file sync with block-level (delta) sync for fast updates
Broadest third-party integration ecosystem of any consumer cloud
30-day (Plus) to 180-day (higher tiers) file recovery and version history
Pricing: Free 2GB; ~$11.99/mo Plus 2TB, ~$19.99/mo Essentials 3TB; Business tiers higher · Best for: file-sync, integrations
Deeply integrated with Google Workspace (Docs, Gmail, Photos) and ubiquitous on Android, with generous shared free storage. A good swap when you care most about google-ecosystem.
Ubiquitous storage with unmatched real-time collaboration inside the Google ecosystem.
Stands out for:
15GB free storage shared across Drive, Gmail and Google Photos
Deep integration with Google Workspace (Docs, Sheets, Slides, Gmail)
Real-time collaborative editing and commenting
Pricing: Free 15GB; Google One ~$1.99/mo 100GB, ~$2.99/mo 200GB, ~$9.99/mo 2TB · Best for: google-ecosystem, everyday-use
Bundled with Microsoft 365, tight Windows and Office integration, and Personal Vault for sensitive files. A good swap when you care most about microsoft-365-users.
The default cloud for Windows/Office users, with 1TB bundled into Microsoft 365.
Stands out for:
Tight Windows and Office integration; built into File Explorer
1TB included with each Microsoft 365 Personal/Family seat
Personal Vault folder with multi-factor authentication for sensitive files
Pricing: Free 5GB; ~$1.99/mo 100GB; 1TB included with Microsoft 365 Personal (~$69.99/yr); Business ~$5/user/mo · Best for: microsoft-365-users, windows