The accompanying Mac app – which, in case you were wondering, is not free and can be found over at the Mac App Store for its regular $9.99 price – is just as beautiful, and combined, you can share and relive those magical memories time and again on all of your Apple gadgets. Whether you’re attending a special event, or merely wish to log your child’s first steps, everything you put into the Day One diary app is stored in the cloud for safe-keeping, so even if, for example, you lost your iPhone, you’d still have all those memories…