installing other apps(ipa) from within app iphone/ipad

I want to install other apps within one of my app,just like what appstore does, when you click install and confirm the app starts downloading on the开发者_StackOverflow社区 springboard.I had tried with openURL, but seems it does not fulfill my requirements. Is there any other way out to achieve this one.please suggest.

thanks in advance. Manoj

The security sandbox on stock OS iOS devices does not allow the installation of other apps. You can only write non-executable files to a few directories within your own apps sandbox.