A lot of money for very little

I knew I was only buying charts but went ahead because I wanted them in one app. But the charts are so limited. OMG! Where are the charts for prosthetic valves? And you cant even zoom the image so you had better have good vision if you go ahead and purchase VERY LITTLE FOR YOUR MONEY. Its ludicrous. Im so sorry I wasted my money. Shame shame.

raterx1 about ECHO - Echocardiography Reference