Best offline map guide!
The Ulmon guides are all great! I used them for Vienna, Berlin, Vienna, and Rome and I loved using all of them. The massive advantage to the London app is that you can check out the nearest tube station to whatever point you reference (even offline). The GPS is quite accurate as well when you are within the city and not in a tunnel.
Love this app!!!
DSP 2001 about
Travel Guides by Ulmon, v6.0