As you know from previous years, it is not possible to transfer IAP's from one game to the other. But as every year, we don't think it is fair to our loyal customers, that you pay more then once for the seasons/bundles. So here is how it works (this year it involves a bit of work from me as iOOTP 2013 is not allowed to be updated anymore):
1. Please contact me:
sebastian@ootpdevelopments.com
2. Please tell me exactly what bundles/seasons you bought in previous versions.
3. I will send you an answer (as soon as possible, have to make a quick Apple check) with an attached file and instructions how to load it into iOOTP 2014.
You do not need any 3rd party tools, only iTunes!
Important: technically, the 2013 season was not part of the complete season bundle so it will not be playable after importing your seasons. I feel it is just right for us to include it but you have to wait for the first update to make that happen (we will send it to Apple shortly after initial release).