The T4A Guide App makes us of your Android or Apple device's GPS receiver to show your location. It combines great cartography with content in an offline package that can travel with you and provides you with an offline (no internet required) eMap and your phone's location is shown on the map as you drive.
This is more of a discovery app which gives you a static but zoomable map which closely resembles a paper map look and feel. Your position from device will be shown on the map as you move and again its fully offline. Then there is guide information, points of interest with associated content which you can switch on and off.
This is an information and location orientation app. This is not a navigational app. This app does not perform route guidance like the GPS but it is very good at providing you with a good map at various zoom levels and you will be able to discover places of interest around you much easier than with a GPS. The GPS is better at searching for known places as opposed to discovering what is around you. The two compliment each other.