Wallpapers and backgrounds have a short shelf life. You can only look at the same thing so often until it becomes boring and bland. It’s just like a viral video that you’ve seen a million times, at some point it loses its hilarity (grape lady aside). With the Chameleon Clock app for your iPhone or iPad, using your iOS gadget as a time checker will always be fresh. By using the camera on the back of your device, Chameleon Clock displays a minimal style clock with a background based on whatever the camera picks up. It’s useless if you always leave your phone lying on your desk, but pretty sweet if you use a dock or walk around while checking your phone. Bonus: No walking into poles.