For MAC
1-If you have an existing version of the application, you must first delete it; either directly from your Apple device or from the “Applications” section of your iPhone in iTunes
2-Save the application and provisioning profile to the to the computer you usually use to sync your iPhone, iPod touch, or iPad.
3-Launch iTunes.
4-Drag the provisioning profile to iTunes.
5-Drag the application to iTunes.
6-Ensure that the application is checked under the “Applications” section of your iPhone in iTunes.
7-Sync your device.
For Windows
1-If you have an existing version of the application, you must first delete it; either directly from your Apple device or from the “Applications” section of your iPhone in iTunes
2-Save the application and provisioning profile to the to the computer you usually use to sync your iPhone, iPod touch, or iPad. Windows will probably recognize the application as a .zip archive.
3-Windows zip utility showing an app and the OS X resource fork.Windows zip utility showing an app and the OS X resource fork. Unzip the archive for the application, and inspect the contents. You may find two folders, one entitled “appname.app” and the other entitled “__MACOSX”. The .app directory is the one you want; the other is known as a resource fork and will confuse iTunes on Windows.
4-Add the mobile provision file to iTunes. You can either drag the mobile provision file to the “Apps” section in iTunes, or import it using the file menu.
5-Drag the .app folder to the “Apps” section in iTunes.
6-Ensure that the application is checked under the “Applications” section of your iPhone in iTunes.
7-Sync your device.
