TimmyBank is a simple Android application for "time banking", an alternative way to exchange services/resources by using time instead of money. By offering a service, the user is rewarded with time credit that can be spent for other services offered by other users. This project was part of the final evaluation for the 2022 Mobile Application Development course of Computer Engineering Master's Degree in Politecnico di Torino. Below there is a video presentation of the app functionalities.