Compare software

Sync.comProton Drive
Freemium

A small free tier is available. More storage requires a paid plan.

 Freemium

A free account is available, with paid plans for more storage and a separate business…

Windows, macOS, Android, iOS, Web Android, iOS, Web
  • Zero-knowledge encryption applies to everything by default, not as an add-on
  • Sharing links with passwords, expiry and download limits
  • End-to-end encryption that the provider cannot read
  • Automatic photo and video backup from mobile
  • No Linux client
  • Zero-knowledge means a forgotten password can mean permanent data loss
  • Requires a Proton account
  • Free tier storage is limited
Downloadable app, Hosted service Downloadable app, Web application, Hosted service
Closed source Closed source
License not stated License not stated
Account needed Account needed
Not stated if it works offline Not stated if it works offline

Checked September 22, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.