The TrueGrind connected grinder app is a companion to the Lucca Atom 65 grinder. The app allows users to set a profile with espresso brew temperature and portafilter size, and then automatically recommends grind adjustments for some of our favorite coffees. It also tracks the roast date - to modify the grind size to accommodate coffee as it ages. You can also add your own favorite recipes for various coffees and save the profiles. Easy dial-in. Easy adjustment. The complex algorithm in the grinder ensures that your perfect espresso is always waiting for you - and every shot is amazing.