macbook

Hi, I've already purchased the iOS version of ireal Pro, as well as quite a few in-app purchases. Do I really need to pay $24.99 just to use the app on my Mac under the same iTunes account, or am I missing something...? Confused...

Honest, I've tried to find the answer to this extremely-basic question in the FAQs and forum, but no luck: I don't use either iPhone or iPod. I just use my MacBook, which goes everywhere I go. Am I correct that I can use iReal Book on my MacBook, but that I'll need to get the iReal Book Editor...