Hi Bcristea,
In this situation, I would suggest creating a backup in iTunes on the computer with the older iPad and then restoring the new iPad from that iTunes backup. The backup in iTunes does include App Store Application data, Appliciation settings, and In-app purchases. This information can be found in the following article.
iTunes: About iOS backups
http://support.apple.com/kb/ht4946
- App Store Application data (except the Application itself, its tmp, and Caches folder)
- Application settings, preferences, and data, including documents
- In-app purchases
- Game Center account
If you need information on how to create a backup in iTunes on a computer, that can be found in this article.
iOS: Back up and restore your iOS device with iCloud or iTunes
http://support.apple.com/kb/ht1766
You can use iTunes to back up and restore your content on your iPhone, iPad, or iPod touch. Note that iTunes and iOS do not support installing backups of newer versions of iOS onto devices using earlier versions of iOS.
Thanks for reaching out,
-Joe