The MX Map Mobile system is designed to be used with Mapyx Quo GIS software. The User purchases maps via the normal Mapyx Quo interface, such as the Tile Shop within Quo, or at the Mapyx website at www.mapyx.com. Once maps are loaded into Mapyx Quo, they can be transferred to the MX Map Mobile. This combined solution of Mapyx Quo and MX Map Mobile, provides a comprehensive combined system of full GIS software and a Mobile Application which are fully compatible. Requires the latest version of Quo. Currently only Ordnance Survey GB maps are supported but others maps and more functionality will follow. If you experience any problems please contact our help desk in the first instance before posting any negative reviews. The Quick Start guide for this app can be found at the link below: http://www.mapyx.com/user_manuals/MXMapMobileQuickStartGuide. pdf.