The newest release by Orca Health may yet be their best. Heart Decide uses stunning animated 3dimensional visualization of a beating heart as a patient education tool. The app allows the user, whether contemplating an upcoming cardiac surgery or trying to understand their heart disorder, to virtually “slice” the heart and peer into into it while it is beating, observing the interplay between the atria, ventricles and valves.

According to Orca, the conditions explored by HeartDecide include the following:

Rheumatic Heart Disease, Mitral Regurgitation, Aortic Regurgitation, Endocarditis, Mitral Stenosis, and Aortic Stenosis. Among the medical solutions to these conditions covered by HeartDecide are Percutaneous Valve Replacement, Ventricular Assists Devices, Valvuloplasty, Impella, Biological Valve Replacement, Mechanical Valve Replacement, Annuloplasty, and Intra-Aortic Balloon Pumps.

The quality of the graphics and animation appear to fulfill the title “Orca Health crafts new level of sophistication in patient education apps” of an extensive interview given to iMedicalApps by Orca Health CEO Matt Berry last December.

The app is free in keeping with their new strategy, as outlined to AllThingsD, to make all Orca apps free starting in September

That’s after an experiment with removing the $5 fee earlier this year brought in 450,000 downloads in three days, which is about half of the company’s total downloads to date.

Even though Orca was doing a pretty good business selling the apps, it’s now going to try to make money from advertising and from referring app users to relevant medical specialists, Berry said. The company also plans to start releasing its apps for Android in the coming months.