EVO is an app that graphically depicts a 13.7 km long route between Orion Planetarium in Jels and The pit. The route represents the evolution from the Big Bang to the present. Via GPS seen their own location on a map and the 10 scale items, which can be found on the route. For each item scanned a QR code that provides access to movies, pictures, text / narration and quiz around that time period.