TiltShift Video is an app that does a great job of giving your photos and videos that miniaturized effect, but it's missing a couple of basic features that would make it easier to use.
When you first launch the app, you can choose to start a video or photo project, but you can't use the app to shoot a new video or take a picture. That's a pretty big annoyance because you're going to need to shoot everything before even opening the app.
From there, the app lets you make a number of adjustments to give your image or video the tilt-shift effect. Using buttons on the left side of the interface, you can adjust blur, saturation, contrast, and brightness, and you can apply a vignette to make the edges of the photo or video fade to black. You also can set the width of the focal area with pinch gestures using an onscreen overlay as a guide. On the right side of the screen there are buttons for adding intro and outro titles, editing the movie's length, and a place to save and upload presets. The presets come in handy because you can make all your adjustments, save them, then apply the same look to multiple videos or photos. If you are a bit overwhelmed by all the onscreen controls, there's also a way to walk through the process step-by-step by using next and previous arrows at the bottom.