Qsync Client
Qsync Client is a macOS desktop app from QNAP that syncs files between your Mac and a QNAP NAS for backup and private cloud access.
What is Qsync Client?
Qsync Client is a cloud-storage and file synchronization app for macOS that connects your Mac to a QNAP NAS. It helps users keep selected folders in sync across computers and makes NAS files easier to access as part of a private cloud workflow. Typical use cases include keeping work files available on both a Mac and a NAS, synchronizing shared folders across devices, and maintaining a backup copy of important data on network storage. The app can also support selective sync and space-saving workflows so users do not need to keep every synced file stored locally at all times. It is mainly intended for people and teams who already use QNAP storage hardware and want desktop syncing similar to consumer cloud-drive tools, but under their own NAS setup.
Key features
- Sync folders between your Mac and a QNAP NAS
- Keep files updated across multiple linked devices
- Back up Mac files to network storage
- Use selective sync to choose which folders stay connected
- Access private-cloud file workflows built around a QNAP NAS
- Use space-saving options for synced files when supported
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Safety overview
Status: Mostly safe
Qsync Client is legitimate synchronization software for QNAP NAS devices. It normally needs access to files you choose to sync, network connectivity to your NAS, and may run in the background so it can keep folders updated. That behavior is expected for a sync app, but it also means changes, deletions, or overwritten files can propagate between devices if your sync rules are not set the way you want. Before relying on it for important data, review which folders are connected and make sure you understand whether they are syncing, backing up, or both.
Recommendation: Keep Qsync Client if you use a QNAP NAS for file syncing or backup from your Mac. If you no longer use QNAP sync features, you can remove it and its leftover support files, but expect synced-folder automation and background updates to stop.
Common paths
/Applications/Qsync Client.app
Support paths
~/Library/Application Support/QNAP/Qsync Client
Preference paths
~/Library/Preferences/com.qnap.qsync.plist
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