I'd like to write a message to Lorenzo Mengoni (Developer), is it possible?
No, it's not possible to contact the developer because its website ( http://www.mengoni.it/ ) doesn't offer any information at all about the created software or ways to contact him. However, it seems it's possible to contact him through the Linkedin website. Because public messaging is not possible, you will have to create an account to be able to send messages or notifications.