You must own a Synology NAS to run this app, and be running the latest Surveillance Station 9.1.0 to get the complete set of features* DS cam makes it possible to monitor and receive alert notifications from all your surveillance cameras set up on a Synology DiskStation. Smart features such as PTZ, patrols or lens control allow for perfect control of your cameras in real-time, while advanced filters make it easy to pinpoint any specific event from large lists of recordings. You can even perform all essential management tasks, from disabling a camera to unlocking and deleting a snapshot. Find all detailed features about the app on our website: www.synology.com > Solutions > Surveillance > Surveillance Mobile > Specifications https://www.synology.com/dsm/7.1/software_spec/surveillance_station