By navigation we mean "being directed along a route based on given visual or auditive info". You also might have heard about Turn By Turn navigation (or TBT navigation) which means a specific form of navigation (read more about this).
The oldest form to support navigation is a map. RouteYou offers numerous printing options. The Roadbook is specifically designed to follow a route on paper (read more about this here).
RouteYou supports the download to numerous other smartphone apps that allow you to navigate. Read more about this here.
Many GPS devices have just been designed to navigate you from A to B or take a route. We support the most important GPS devices through the Download. Read more about this here.