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Resilio SyncFolderSync
Free

Free for personal use. Business editions are paid.

 Freemium

The Android app is free; the desktop app has a 14-day trial.

Windows, macOS, Linux, Android, iOS Windows, macOS, Linux, Android
  • Files sync directly between your devices with no cloud storage involved
  • Fast on a local network and works well with very large libraries
  • Supports more than 20 cloud providers
  • Also syncs with SMB and SFTP targets
  • Closed source, so the protocol and crypto cannot be audited
  • Both devices must be online at the same time to sync
  • Desktop version is paid after a 14-day trial
  • Proprietary software
Downloadable app Downloadable app
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is 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.