CLIMB Piedibus Smart is a mobile app created to support Piedibus companions. It allows you to fill in an automatic roll call thanks to proximity devices in the possession of the participating children, it allows you to register the volunteers present every day, it provides indications of the stops and possibly the contact details of the volunteers and parents. The app was born in 2016 as part of the CLIMB research project of the Bruno Kessler Foundation's Smart Community Lab, initially created i