Download and install Iphone / iOS users: please download and install the “Topo GPS” app. Then Buy the “Føroyakorti”, which is the map for the Faroe Islands. Price 29,00 DKK. Other / Android users: please download and install the “Great Britian” app. Then buy the “Føroyakorti” which is the map for the Faroe Islands. Price 29,00 DKK. How to use Use the app to open a downloaded hiking track. Safety Remember that the app is not a replacement for an original waterproof GPS unit. Not all smartphones can withstand the weather or being accidentally dropped / damaged.