Qmanager is a free iPhone app developed by QNAP Systems Inc. that allows users to monitor and manage their QNAP Turbo NAS from their mobile device. The app requires iOS 12 or later and a QNAP NAS running firmware V4.0 or later.

With Qmanager, users can monitor system information such as CPU usage, memory usage, system event info, and online users. The app also allows users to check their download station and backup task info, and manage these tasks remotely by pausing or running them. Additionally, users can turn on/off application services with one click, check connection status or the current online users to prevent invasion, and restart or shutdown the Turbo NAS remotely.

One unique feature of Qmanager is the "Find My NAS" option, which allows users to locate their NAS by using the app to make the device emit a beeping sound.

Overall, Qmanager is a useful tool for those who need to manage their QNAP Turbo NAS remotely. The app is easy to use and provides a wide range of features to keep users up-to-date on their system's status.