Hi! I bought the app "Fake-a-call" 6 months or so ago and at this time it was free. I deleted the app from iTunes and from my iPod but now I want to download it again... But it now it costs something (0.79 €, i think 0.99$). The version I bought was v1.10 but now there's v2.21. Do I have to pay it or is this "update" free for me?