I had been thinking about buying a Satmap, but held off because it’s quite expensive for a device that I would only use as a secondary navigation tool. Since I learned that the iPhone has a GPS, I have been on the look out for an app that does a similar job. Now it’s arrived: RoadTour Outdoors. For £12.99, I now have 1:50,000 maps for all the national parks. The coverage is quite generous as it extends a reasonable distance outside the boundaries. You also get a base map of 1:250k of the whole of Great Britain.
As the maps are stored on the iPhone, it is independent of a phone signal or internet connection. You can enter routes etc. It’s very impressive. I don’t know how accurate the iPhone GPS is, but I will test it when I can. I feel a bit sorry for Satmap as it’s a bit of a game breaker. Regional maps are available for a very reasonable £14.99 each. The national parks maps take up about 1gb of space, so entire coverage of GB would use quite a lot of space.