Worst Buy Ever

I have tired so many applications and finally decided to purchase this APP and gues what.... I recieved errors soon after this app was purchased and downloaded. Why does Itunes not test these applications before allowing these items to be purchased! A waste of Money and TIME! I have and Iphone 3gs and running version 4.2.6 and when I open the APP i recieve an error relating to my phone not having the correct hardware.......... What hardware is my phone supposed to have that it currently lacks in order to run this application????????????

JesieMV about Ringtone Maker™