Perfect Shot - no more blinky gurning pictures

This is an amazing app. It takes advantage of new behind-the-scenes stuff in iOS 7 to do something that anyone with kids (or friends who aren’t models) will really appreciate: it takes a picture when everyone is smiling with their eyes open.

OK, this picture of smirking models isn’t a fair example. But I’ve tested this a lot, and it works with a surprising degree of accuracy, on actual human beings. The interface itself is fairly basic, and there are only two settings you can change:

Every camera app should have this functionality, but right now only Perfect Shot does.