Did you know that there is a quick method to transfer apps to iPhone without the need for iTunes and without a Jailbreak?
CopyTrans Manager is a free lightweight iTunes alternative which allows to install apps on iPhone and other iOS devices such as iPad or iPod Touch.
1. Download CopyTrans Manager and run the program
2. Connect your iPhone or iPad/iPod Touch to the computer. iPhone music, videos, playlists and apps get listed in the main program window. Click on “Applications” under “ Playlists.
3. You now see a list of all the apps installed on the iPhone.
4. To add new apps, simply drag and drop the IPA file from your PC to the open CopyTrans Manager window.
The apps have been added and installed on the iPhone.
That's an easy way to install iPhone apps without the need for iTunes using the latest version of the free CopyTrans Manager.