Frankfurt – S Bahn & U Bahn

This app has saved me many times. It has gotten me home many times when i wasn't sure where to go. Its very helpful and gives you the most direct route.

This is a good app for people going to Frankfurt. It gives you tones of info on the subway system in the city. A lot of subway systems could be confusing(the London tube for instance). With this app people can navigate through the whole city with ease.

This app has what you want at a reasonable price. It pulls up a map of the whole grid, provides easily placed pull down locations for directions to and fro, tells you how and where to acquire airplane transfers, tickets for your destination and even has a built in euro converter. Great user interface with simple and clean visuals. Solid app.