Great app

Used extensively while visiting London. Accurate and works perfectly offline. Very easy to use. Can have it route from station to station, or even set an attraction as one of the destinations (ie. London Eye) and it picks the correct station for you. And best of all its free, has no ads, and no unexpected purchases to make for it to function properly. Highly recommended.

Me_2_000_000_000 about Tube Map - London Underground, v5.4.5