Very cool!
Doesnt just work with new photos- you can edit any of them, and not only portraits. Most will need a little editing- doesnt always recognize my whole suit jacket, but easy to fix. Amount of background blur and size of paint brush and eraser very adjustable and intuitive. Well designed. Its cool that the editing prioritizes the subject rather than just blurring everything else- much faster that way and makes it easier to not mess up the subject. Works fast on my 6S. A magnifying tool would be a welcome future addition. That is my only criticism.
ASOTuba about
FabFocus - Portrait Mode Blur, v1.0.3