What I love about this app most is that it doesnt cost me anything when Im in a foreign country. Before I travel, I save the maps that I need and use them when I get there. Also, I love to use this app when bicycling. It is much more accurate then any bicycle maps Ive ever seen. This app however doesnt replace topographic mountain maps...but almost does!
duacibor about Offline Topo Maps, v3.0