Compare software

FolderSyncSyncthing
Freemium

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

 Free

Free software; the Syncthing Foundation is funded by donations. There is no storage cost…

Windows, macOS, Linux, Android Windows, macOS, Linux, Command line, Self-hosted
  • Supports more than 20 cloud providers
  • Also syncs with SMB and SFTP targets
  • No central server: none of your data is stored anywhere except on your own computers
  • All traffic is TLS encrypted with perfect forward secrecy, and every device is authenticated by certificate
  • Desktop version is paid after a 14-day trial
  • Proprietary software
  • The official Android app was archived in December 2024; Android users rely on a community fork
  • Both devices must be online at the same time for changes to move
Downloadable app Downloadable app, Self-hosted
Closed source Open source
License not stated License: MPL-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 23, 2026

Checked September 20, 2026

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