Application with full Roman Missal in Latin, Spanish, English, Portuguese, Italian and German. You can choose two languages from them to have a full bilingual missal.

Access to the various parts of the Mass through tabs, which come to be the equivalent of a missal ribbons, remembering the previous position of each one. This allows prepare the Mass to be followed, without going through links during the celebration.
It also has presets which allow you to save sites (for example, certain readings hit) and then quickly go to those sites.
It includes a perpetual liturgical calendar that allows to know the current liturgical day and prepare directly the Mass of the day chosen from here.
Understandably, in a text of this size may have a typo. It would be appreciated that the users communicate.