Luke Patrick: If you’re one of our more dedicated readers, then you’re likely already aware of the fact that we’re huge suckers for puzzle and memory games. There’s just something about an app that tests our mental mettle that gets our juices flowing. As such, we’re pretty stoked to introduce you today to SpacePairs by developer Metaphase 07. The app provides us with a social and competitive way to memorize tiles and match up pairs. Best of all, it’s completely free in the App Store!