Meanwhile it is quite easy to create html5 apps under android, we are facing some challenges that makes it unfeasible to offer support for iOS.
The price of 99$ per year to offer an app to the app store
Installing without app store is possible but not practical
the QR code library to scan and decode the QR codes does not work on iOS
slowing of development
This means that for iOS an extra non-html5 based app has to be developed. We don't have a programmer for iOS. Secondly, development would slow down significantly and make production more complicated as two branches have to be maintained. On top of that we would have to pay the yearly fee of 99$.