Circo Real Time GPS Tracker

There's not a lot to say here. As far as I can tell it just... doesn't work. The app never connects even after moving from a data-only sim to a full At&t one. No response from the manufactured either.
www.amazon.com/gp/product/B01M...

[@MrMarcusch]

I just bought the tracker today as well and it doesn't work too !