Not worth it
The lung app just has the sounds - no comparison to normal and no suggestion of what the pathologies may mean. That’s a little annoying and all but still of some use I guess... The heart app doesn’t have sounds, or all of the different types of murmurs/splits. It’s completely useless to me and doesn’t even work :( I’m sorry but you really need to work on this app ! It’s been a complete waste of money for me.