It's linked to your activate account, so I assume if you're playing the same game of LI on all your devices, it would appear on all. If you have a different game on each, I guess you only get it on that one.
I use my itunes account to buy gems for my son's game on his ipad. Those gems don't show up on my game on my ipad. However, if you're one of the folks that play the same game on their ipad and iphone, I'm sure it shows up on both when you bring the game over from the cloud save.
Edited 1 time - Last edited at 11:05:38 08/08/2013 by bjornolf