Misplacing an iPhone is as common and problematic as misplacing car keys. The developers at Netwalk have turned this frustration into a hide-and-seek game in which you get to do the hiding instead of seeking. The interactive app, Chameleon Clock, uses the device’s rear-facing camera to capture a photograph of the real background to display on the screen, effectively camouflaging the iPhone or iPad. For practicality, the app also shows a digital clock in the foreground with the option of white or black lettering that is adjustable in transparency for an added bonus. The chameleon effect is quite convincing, so be sure to remember where you place your electronic device before using the app!