We just did a test with the Android and the iPhone PRTG App.
We found out that when you view a Map with iPhone you can double tap to fit the Map to the screen (It zooms out). also if an icon has an external link it is clickable and shows the map which it is linked to.
But these features are not available with the Android app. On double tap the screen only zooms in a little bit.
It this a bug?