I have keynote on my iPhone. how do i download it to use it on my macbook air?
I originally bought all three apps, keynote, numbers, and pages, through my iphone. Just recently I purchased a mabook air. I want to use these apps on my mac. I tried to download it from the app store thinking that it would not charge me again, but it seems like it will charge me!! How can I re download these apps without being charged twice. Thanks!
MacBook Air, iOS 6.0.1