No, we do not use Bluetooth or GPS. At ZetaPulse we have developed our own algorithm that is able to measure your location accurately upto 5 meters without needing to use your precise location.
We don't have an app. Our technology is embedded in the format of an SDK and is therefore supposed to be implemented in your own app, or the app of one of your partners.
No, the battery consumption is around 1%. Compared to 35% with GPS-based solutions or 15% with Bluetooth-based solutions.
You need to have a native iOS or Android app for the technology to work. However for Xamarin bindings can be made.
We are not able to identify a user other than via his IDFA. Meaning we refer to every person as a number. Only the app will be able to identify what person is behind the number.