iOS Pick: Infltr - Infinite Filters
Megan Morrone's app cap on iOS Today 324 is Infltr - Infinite Filters. This is a new type of photo app with an infinite amount of filters (which is actually 7 million). You just take a photo or video, then touch the screen, and it will apply a random filter.
There's also a Messages extension that allows you to take photos and apply photos right from within Apple's Messages app.