.app to .ipa

Create a folder called Payload and place the .app folder inside of that. Zip up the Payload folder using normal compression, then rename the file with a .ipa extension.

One thing to note is that if you want the app’s artwork to appear in iTunes (rather than a generic app icon), you need to place a file called iTunesArtwork (with no extension) into the zip file on the same level as the Payload folder (not in it). This is actually a jpeg file of a 512x512 image and this will appear in iTunes for the app. When I was converting folders, I didn’t have the original images so I just left them off, the app works fine you just get the generic icon.


from: http://forums.macrumors.com/showthread.php?t=538622

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