Here are the steps to do that:
- Connect Your Device To iTunes
- Select it from the left by clicking on it.
- Select the Apps tab on the top right.
- Make sure "Sync Apps" is checked.
- In the list of Apps un-check iGigBook.
- Select "Apply" button at lower right portion of iTunes to uninstall.
- In the list of Apps check iGigBook
- Select "Apply" button at lower right portion of iTunes to install