Labtrino is an IoT- and machine learning startup that meters and visualizes hot and cold water consumption in apartments - on an outlet level. Our smartphone application creates awareness of water consumption by comparing it among peers and offer individually tailored and smart nudges to eliminate unnecessary overconsumption. Non-invasive ultrasonic metering technology enables apartment metering for billing leak risk-free and cost-efficiently, instead of sharing the building's total cost based on apartment size or number of residents.