What does error message "The iTunes Store is unable to process purchases at this time. Please try again later" mean and how can I solve and fix it.
iTunes
One of these two has worked for other people and it might work for you too.
*. "Reboot and go into purchases tab and download from there."
*. "In the evening, I turned on auto-update and rebooted the ipad. In the morning, the applications were updated."