Filters allow you to apply effects to your image with one touch, usually with a range of effects such as retro films or sketches.
Tilt shift is a technique which can be used to achieve the “diorama” effect, whereby you can make normal images look as if they were taken of small models. It works by applying a blur to parts of the image which simulates a shallower depth of field, even on objects far away.
When taking a picture with the app, you can preview your next photo with the filter already applied. This means you can choose a filter that compliments the scene before you capture the image, rather than applying it later.