They give you seven days free Cloud storage without a subscription. Longer period like a month requires a subscription.
I found no benefit of the subscription and got rid of it because I usually used the USB device to capture the videos. I think the only benefit is if you are monitoring over a period of time where you plan to be gone and need the uploads to the Cloud to view on the phone while away. The app is the same for either the free or subscription.
I found their app, which changes often, very useless and repetitive. It is a very poor app for a system like this and needs a major overhaul.