Well I've don't had Steam so I've can download mods right?

@HellFireKoder
Oh, good to know. I always felt like Apple/Mac users get boned because they couldn't play with mods. I acctually don't use mods on my uploaded plans very often because it excludes some users.

@CaesiciusPlanes @EnderWiggin Steam version on OSX/Mac DEFINITELY supports mods (many Mac users have reported, and I had a FT tester on OSX as well), though I'm not sure how you need to install them (reports vary), or if the Apple store version supports mods (I thought it did, but people keep saying it doesn't)... Apple is still strict on OSX, but it's not nearly as closed off as iOS, which ACTUALLY can't have mods because of Apple's policy.

Apple operating systems don't allow for program rewrites, so Mods (or code modifications) are not accessible. However, you can download modded parts (wings, weapons, fuel tanks, engines, etc.) that already exist in the game from other non-IOS/OSX users. I.E. just ask other users to modify a part for you then just save the part as a subassembly and it's your's to use.