It was a wee bit of work optimizing my two old iPhones for power consumption, but their instructions were easy to follow. Once I got it set up right it has been a better security camera system than my old laptop/usb cam setup.
Over two months without interruption so far and an iPhone can survive longer power outages than a laptop.
The "live" is about 30 seconds delayed in my case. Not as quick as Jumi but it does the trick.
I see the new version shows the battery level and that the charger is on. Maybe the next version will push a notification for power outages and/or low battery?
Thumbs up on their customer support.
AndOneMoreThing about Manything, v4.0.1