A purchased map may be downloaded several times by a user (for example, to load the map on different devices). It is also possible to reload the map on the same device, if you had deleted a map not in use because of lack on memory.
1) Get the free AvenzaMaps application:
Pilis, Visegrád hills, Szentendre island tourist and biking map for mobile applications
Pilis related larger scale inset maps can be bought also on AvenzaMaps page