Hikvision Alarm Notifications can be instantly pushed to your mobile device, then you can either play back what just happened or live view what is happening.
The alarms detected by a CCTV camera, or other devices can be sent to you automatically on the Hik Connect App by performing the following simple configuration. Note: Here we take the motion detection configuration of a DVR
How to enable push notifications for hik connect app on your mobile device
Please see guide below