We would like to write an App using downloadable maps for roadbooks mainly through Switzerland and surrounding countries, later also other countries in Europe.
The App will allow us to design routes and also describe landmarks on the road, like description of monuments and also restaurants and hotels.
Maybe at some locations, there will also be questions possible for example "how many steps are going op to the church? " with multiple answers and then showiing if answer is correct.
We need a map that can be downloaded as internet coverage is not available in a part of the Alps. The system must be able to work offline.