Its an ok photo editor and a deficient collage maker, with some real interesting paint effects. It has small banner ads, which are small but distracting on the iPad (because they change so often and draw your eye) and take up too much screen real estate on the iPhone. It reduces the resolution of your photo when you save it.
You can send your edited pictures to be printed as postcards or iPhone cases (for money, of course).
martianfencer about PicArts Photo Studio