Amazing app!! Hire a programmer and graphic designer!
I do wish you had the option on the main page choose Cardiovascular disease OR Heart failure as individual diagnoses since that does change the medication recommendations as some meds benefit one but not the other (ex: GLP-1s have no benefit in heart failure).
With that being said, I love it otherwise. One minor suggestion: consider hiring an app programmer and graphic designer to actually give it a logo besides a phone symbol, and improve the look of the app overall! It will help it be used much more!