Worldwide coverage for Google Maps directly in ArcMap, with the convenience of a low-cost monthly subscription. Print, export, view layout, and handle multiple projections — it’s all here. Export your maps in KML format for viewing in Google Earth, with support for printing, multiple projections, and multiple layers per map. Dramatically improve the time it takes to display complex maps. Create map title caches for Google Maps, Leaflet, OpenLayers, ArcGIS Server and Mapbox. Arc2Earth Sync is a companion program to the main Arc2Earth extension running inside ArcGIS Desktop. It’s main purpose is to create and manage client side caches of online GIS Cloud services that can be used seamlessly inside ArcMap. In short, it’s a connector between the ArcGIS ecosystem and other external GIS and Geospatial services (called Table Providers). It serves as: Sync can be best described as a dynamic, client side cache for your online GIS data. Display and editing occurs against the local cache, remote and local updates are applied automatically. Source.