Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To download the free app 3M™ Littmann® SoundBuilder by 3M Company, get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC

3M™ Littmann® SoundBuilder

By 3M Company

Open iTunes to buy and download apps.


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.

What's New in Version 1.01

Now available - looping heart sounds in all portions of the app, even the 3D animation, for a better learning experience.


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4
iPad Screenshot 5

Customer Reviews

Get rid of the commercials

Plz make a paid version for 99c and without those adds. Also it would be great if you guys added more physical examination (for example mitrial regurgitation can be attenuated by hand grip, expiration, etc...). More heart sounds would be great too. Nice little app for practicing your heart sounds.

Need for headphones

Several commenters complain about the need for headphones to hear the sounds. Heart sounds are low frequency; the first and second heart sounds are around 100 hz. Murmurs are somewhat higher. The tiny speakers in iphones and ipads are not capable of playing those sounds with any volume.

If you want to use this app in a lecture hall it can be done by buying a pair of powered speakers. They can be had for as little as $100 and are capable of filling an average sized lecture hall with sound.

Needs better sound quality

Littmann has done a great deed in developing this app. It provides "lessons" on diaphragm/bell positioning and heart sounds, but it fails in sound quality. On both iPad and iPhone with the volume high, you can barely make out the heart sounds it produces. This is even with placing the speaker directly next to your external canal.
I would love to use this more as a mobile teaching model, so that students may hear what I am trying to explain when a patients with similar conditions are not available. Littmann's only suggestion is to wear headphones, which is not always practical.

3M™ Littmann® SoundBuilder
View In iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Medical
  • Updated: Feb 22, 2011
  • Version: 1.01
  • Size: 105 MB
  • Language: English
  • Seller: 3M Company

Compatibility: Requires iOS 3.2 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Become a fan of the iTunes and App Store pages on Facebook for exclusive offers, the inside scoop on new apps and more.