Create ipa file using itunes
STEP 1: Get .app file
1. xCode window tab
2. Organizer
3. Right click to the archive you want to get app
4. Show in finder
5. Right click to (ProductName….). xcarchive file
6. Show package contents
7. Products/Applications
STEP 2: Create ipa file
1. Drag & drop .app file to itunes profile and binary file.
2. Select app in iTunes and right click to show in Finder. And there you can get the .ipa file.
Source:
http://stackoverflow.com/questions/1984727/how-to-get-app-file-of-a-xcode-application
http://stackoverflow.com/questions/4711586/how-to-make-an-ipa-file