Really impressed – Berlin Subway: BVG U-Bahn map Review

As a fellow app developer I have to say I was so impressed with this app. 100% offline step-by-step directions with GPS and a polished interface. My trip to Berlin w/out a data coverage would have been frustrating to get around without this app, THANK YOU!!!
Review by ebrookey14 on Berlin Subway: BVG U-Bahn map.