Digital agency Marvellous has created a new iPhone application for Grolsch aimed at promoting responsible drinking.
The application uses the iPhone’s accelerometer to demonstrate if the person holding the phone can walk in a straight line.
The tongue-in-cheek approach was devised by Marvellous’ Amsterdam office for the Dutch brewing giant.
While not an actual alcohol test, the app aims to encourage festival-goers to think about their alcohol consumption in a fun way.
Grolsch is backing the launch with a field marketing campaign at major music festivals in the Netherlands during the summer.