The idea for this app came to me when I was going around a watch fair. I had found a watch I liked but I was unable to authenticate it as I had no data connection.
The Universal Geneve Polerouter app contains a local database (once it has done an initial sync) of all of the known, correct models of this wonderful line of watches. This allows collectors to check a watch even if they don't have an internet connection.
The app connects to a .Net Web API service to do its syncing, is written in Xamarin Forms and is available on both Android and iOS.