Menthal: quantifying smartphone usage

We present some of the methods for quantifying mobile phone usage used in the Menthal app. We show that single numbers work for promoting an idea but more complex visualizations retain users. The Menthal app works as a digital scale and keeps the user updated with his current usage habits. In particular we describe the MScore, a simple way of quantifying mobile phone usage by a single number. By displaying it as a notification, we are reminding the users of their potential phone overuse. We present information in a simple way, allowing user to dig deeper into different aspects of their behaviour through a dashboard. Additionally, we show our methods for correlating multiple measurements in an attractive way.