First , check if a updated version of the application is available for your iPad:

Open the App Store application and choose Update.
You get the list of having an update available. Guests applications can choose to 'Update All' or 'Update' only some applications.
Your iPad automatically download and install updates for different applications.

Our updates are free, but ask you AppStore information (login / password ) iTunes account.

AppStore pour mettre ŕ jour des applications