Download this app if: you need a free, scrollable map of the London Underground.
Tube Map - London Underground is the No 1 FREE cross-platform tube app boasting over 11 million downloads. Tube Map has a great menu layout and is packed full of cool features which include: LIVE arrival & departure information, station finder, journey planner and Tube Map's Status and News...
Needs bus and above-ground train info — This app lets you look at the London underground by station, look at the tube map, gives live status, journey planning, and details about journeys. It's a great app, but is missing the above-ground and bus info.