The University of Minnesota TEE mobile app allows physicians, students, and the general public to access a real, animated human heart for training transesophageal echocardiography. This simulator allows students to understand the controls of a TEE probe along with the ability to see how the two-dimensional image of an echo screen is mapped to the three dimensional heart. This simulator can be used to train for TEE certifications and improve the general abilities of all TEE users by training whenever and wherever they want for free.