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

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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.