Google has updated Google Earth for iOS this week. The updated version of this app includes the ability to view custom maps.
The new feature would let you click on a Keyhole Markup Language (KML) file you find on the web and open it automatically in Google Earth. KML files contain geographic information that you can view in software like Google Earth and Google Maps.
Not only KML support, the latest version of Google Earth also includes Earth Gallery, a new feature that would let you explore a list of curated maps that show as real-time earthquakes, hiking trails, and city tours. It also adds a few stability and performance improvements.
Google Earth is available for free from the iOS App Store. It is a universal app. Thus, it will work natively on both the iPad and the iPhone.
Click here to download Google Earth.