4 photos of the same picture

Why to I have to have 3 pictures and then the final picture saved in my photo album? I use the app to get a HDR picture, not to get different exposers of the same picture. It is annoying and confusing as of which picture is the final result. They all look so different. If I want multiple pictures of the same thing I can use a different app. I want just a HDR photo from this one. What gives??

Nitara about HDR Photo Camera