Well, I am almost always lost, and I am sure a smartphone would not help that. 😉 DW, OTOH, has an amazing sense of direction, and I just follow along. 😊
There was one time we were totally lost on a DIY. It was in Santorini. We stumbled upon a museum in a cave about ancient life in Santorini. The guide did the tour in English for us and Greek for the other couple on the tour. Afterwards, we showed him our HAL provided map and asked him to point out where we were on the map. He laughed and said we were off the map. He asked if we had a car, and when the answer was no tried unsuccessfully to call a cab for us. Then he pointed out a shortcut to get where we would be on the map. How about that crude technology, getting help from a fellow human being! 👍