How to Sync iPhone Apps
- 1). Connect your iPhone to your PC with the iPhone USB cable. Plug the USB end into a USB port on your computer and insert the other end into your iPhone.
- 2). Cancel the automatic sync by sliding your finger across the "Cancel" bar on the iPhone screen.
- 3). Open iTunes and click on your iPhone in the left pane under "Devices."
- 4). Click on the "Apps" tab in the sync window. The Apps page will load.
- 5). Click the check box next to "Sync Applications" at the top of the page.
- 6). Select the apps you want to sync to your device in the left section. When you select an app, a small arrow will appear in the check box next to it.
- 7). Sync the apps you have selected by clicking the "Sync" button at the bottom of the page.
Source...