Just got it and you want a review. One thing I do not like is that it seems to only be viewable in portrait view and not landscape and it cannot be rotated. Otherwise it is fine, very clear and you can zoom in.
Disappointed that there was no search facility with the app. This is simply a high resolution picture. Google images would also do this.
This is good if you already know London and you need the inset weensy. .....probably a nightmare for a tourist.
it helps you to get around London. To work out what you want to see in a set order if you know what station that site is near.
It's okay but needs more information on it like they can do live updates, information about what's going on any delays or accidents on the tube lines.
Only slightly more convenient than finding the pdf online and downloading it to your device.
Updated the map