While Charlie and I were in Cuba I became familiar with an iPhone app called maps.me. It was invaluable.
I downloaded the Cuba map.
I opened it after we hired a cab at the Airport to take us to our first casa particulare.
The blue arrow pinpointed where we were and showed us that the route we were following was actually taking us to our expected destination.
The best part of maps.me is that it uses no data and does not need wi-fi; it works on GPS.
I could plan trips even if someone else was driving as was the case when riding from Havana to Viñales and back again in a taxi collectivo.
I have downloaded my local map and also our next trip: London.
Do you have a favorite app?