From the developer: "BuenSoft Ingles is a innovative, listening-based interactive program designed to give adult and adolescent English students a fast and easy way to improve their skills. You can add only five subjects to the unregistered version of this program. The registered version lets you add an unlimited number of English subjects. The new version now includes two more activities in addition to the other 13 activities previously included. The teacher administration module has been updated to keep track of the student's scores and progress."