Thank you very much! For your help and the very quick response!!
I even had to change the line:
http://maps.google.com/maps/api/js?sensor=false
and adding the api key – now the old plugin works and shows the map even in back/and frontend!
It´s a pity that the developer of the wp ios app don´t change the integrated geolocation feature to a actual and supported plugin.
Thanks again
Sebastian