Hello FOAmaral
Thanks for your posting on the forums
With the new alert cameras (Not Wilife), you have the option to view live video on your iPhone even while your PC is turned off as all video viewed remotely comes directly from the onboard Micro SD Card inside the camera.
If you have purchased our Premium service you will also be able to playback any stored video as well as long it is still on the SD Card.
Hope this helps 
Have a great day
Sincerely
Patrick
Logitech Forum Care
