3M™ Littmann® SoundBuilder App for iOS
'The 3M™ Littmann® SoundBuilder App is a learning tool designed to help improve the auscultation skills of students and practicing clinicians. There are 14 unique lessons - based upon key heart sounds - that combine text, a virtual mannequin, 3D cardiac animation and dynamic waveforms.
This tool is intended for educational purposes only. It is not intended for diagnostic purposes.'
This is a free app