horrible app, do not buy, its a waste of 99 cents. i had an older app called "tube" for paris on my old i phone which worked really well, but could not transfer it to my new phone 4, so i looked around for another app. for some reason i picked this one and can not for the life of me figure out simple things, for instance, how to get from one station to another, and how long this will take, and where to transfer. with "tube" paris it was easy, touch the departing station, touch the destination station, touch "route" and all the info is given to you. but with this poorly thought out app, its still a riddle. why pay for an app which is so difficult to figure out? its a rip off.