The mac version of AppGameKit, I prefer to use macs though I also own PCs, it says mac is only tier 2 on the forums, but on the buy page I don't see two different versions, perhaps its because I am browsing on a mac, so if one was online on a PC, perhaps there are two versions, or perhaps they did away with 2 tiers and its only the one now, and you buy AppGameKit with both included.
Also if an app is made in the tier 1 Basic can the project be opened in the mac version and deployed to all platforms.
(Can a mod please add 'on' into the title of the post /I must of made a typo, I like things to be clear so it helps those doing a search.)