Available in 10 different languages, Metro is an excellent guide that displays the metro routes of over 300 cities throughout the world - there's just no way you can get lost with this extremely handy utility on hand. Presented with a very intuitive, easy-to-use interface, simply mark your starting point and destination. The application will then automatically point out the changes you have to make, the time and stations that you have to follow in order to arrive safe and sound, and in good time too. One of the problems however that you can encounter with this kind of software is that you might not find your own city. An incredible data base that provides the user with the easily accessible information about the city they're visiting or live in. What's more, it's absolutely free too!