I got an email a few weeks ago with an offer for the Focus Projects 3 Professional. I tried it today in my living room.
I recommend this app/software. I only paid $35 (US) for this app. It uses all photo formats including DNG, JPG, TIFF etc.
Here is a sample of blending 7 images. Notice the wood grain of the chair in the photo as well as the detail of Santa's beard in the seat of the chair. Pretty amazing. Can't wait to try this in a landscape and especially a macro of flowers.
A7 Mk II body, Zeiss 25/f2 Batis lens, 1/4 second ISO 100 at f2. Tripod used.