There are two versions of Polarr styles. You can separate them by the appearance of the QR code style. In the old version, the preview images are arranged left to right.
while the new version has the images arranged inside and outside.
At present, the old style QR code cannot be generated in the application, but we still allow the old style to be imported in the latest Polarr Photo Editor. The new version style cannot be imported in the old application (5.x and before).