No specific info about version 8.1. Please visit the main page of Earth 3D - World Atlas on Mac Informer.
Google Earth gives you a wealth of imagery and geographic information.
Google Earth Pro gives advanced business tools in addition to all the easy-to-use features and imagery of Google Earth.
This plug-in allows you to navigate and explore geographic data on a 3D globe.
View weather patterns all over the world, with real-time cloud cover and a 7-day forecast.
View analytics georeports on a 3D Google earth globe.