There's a thread by this title but for iOS5 and earlier, so this one is for iOS6. To capture the idea of the original question: My husband and I have 2 4Ss between us, and we want to make it so anything we put on one iphone's calendar, will automatically appear on the other's iphone calendar as well; a shared calendar deal. The only idea that floated in that original thread was to use iCloud. Is there an actual app that can do that? Thanks in advance.