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QNAP QsyncNextcloud
Free

Provided by QNAP for use with its NAS devices, which must be bought separately.

 Freemium

The server and clients are free and open source. Nextcloud GmbH sells enterprise support…

Windows, macOS Windows, macOS, Linux, Android, iOS, Self-hosted, Web
  • Real-time sync across computers, mobile devices and the NAS
  • Keeps files on your own hardware instead of a public cloud
  • Your storage limit is your own disk, and your data never leaves it
  • Desktop client supports virtual files, so a big library costs no local space
  • Requires a QNAP NAS
  • Mac backup is still in beta
  • You run the server, which means updates, backups and certificates are yours
  • Major version upgrades are known for needing careful reading
Downloadable app Self-hosted, Downloadable app
Closed source Open source
License not stated License: GPL-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 1, 2026

Checked September 21, 2026

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