Jetpack Loop Order?

I've noticed that I need the fruit jetpack and the bubble gun jetpack for the achievements that I need on Jetpack Joyride and I was just wondering if there was a certain order that the jetpacks are released in. If there is a specific order could someone list it? Or at least let me know if there is an order or not.


On my Windows Phone 8 I have both available for purchase for coins. On my Goggle Nexus tab I don't have ether one. They probably alternate of releasing content between platforms instead of releasing on multiple platforms at once.