Playbrush is an oral care device for children that is designed to encourage them to brush their teeth regularly and properly via gamification.
The device controls a variety of different games with the intent to encourage children to spend a full two minutes brushing their teeth.
Together with childhood friend Matthäus Ittner, former fellow student Tolulope Ogunsina, and with help from the University College London, Varga began development of Playbrush in summer 2014.
The device launched in November of the same year with mobile apps for Android and iOS in Austria, Germany, and the United Kingdom.
As of summer 2018, there were eleven games available for download on Google Play and the Apple App Store in addition to a brushing coach.