iPhone App Size! 42MB on iPhone with nothing?

Hello,
I put my app on my iPhone today and it was a test testing whether or not broadcasting messages effects Frame Rate, basically just changing the color of the cube was actually all it is. With nothing in my assets folder but the unity Generated Cube and having it render a different color when Using broadcasting messages and Raycast Hit.

My whole project is only 340KB!!

[13723-screen+shot+2013-07-30+at+1.38.30+pm.png|13723]

When i uploaded to my iPhone i See this:

Yes I’m Running iOS 7 beta 4 :smiley:

Thanks for the help
Daniel

PS: I take time to rate and Mark correct/good answers.

Yep, development build will make your app size bigger.