Unstable This app is based on a great concept and has plenty of potential. It consistently froze, though, while offline when I needed it most. This was a pretty big let down, given that I was relying on it within an unknown city wherein I didn't speak the language. Fortunately I had the competing app from Ulmon installed, which worked without issue. I'm giving this 2 stars rather than 1 because I suspect it would be great with 3G access.