Are there any iPhone apps in iTunes to invert screen display?

Something similar to UpsideDown or SBRotator, but I don't have a jailbroken phone and do not plan on doing so.

No it's a setting go to settings >general>acesibility>scroll down to bottum>tap triple click> choose toggle white on black>go back to home screen> tripple tap home button and it should invert and to turn off tripple tap again