This app is awesome to have when in Paris. You dont need wifi and the best part is that you just put where you are and where you want to go and the route is given to you. It made it much easier to move around and you dont look like a dumb tourist looking at paper maps. You blend in so to speak.
I would double check routes at first just in case. I know there were a couple of times where it took me to 3 trains to get to one location vs 2 where it was more a direct route. There is no zoom when a route is plotted either so thats a bit of a bummer but oh well.
Overall 4 well deserved stars. Its a handy tool to have especially when youre going to multiple destinations in a day.
Ludwig_01101000101101 about Metro Paris Subway, v5.2