A free app for Android, by Edelvives.

Ta-tum is an application designed to be a digital tool that can be used by children, teachers, parents, and schools. It offers a selection of books that are categorized by different themes and allows the user to make different itineraries that can be read on any device. The itineraries are designed to develop the reading skills of the user in a fun and interactive way.

The application was created by the Edelvives Group, a software company that specializes in creating educational applications for children. With this application, users will be able to make different itineraries, each of them with a different theme and a unique story. 

The application allows users to choose any book from the list of available books and to mark the books that they have already read.