It's a drop and wait app. Simple and a one trick pony. Depending on the size and resolution of the image that needs sharpening, the process time can take a short or long time. Well worth the money

I use this app on a regular basis. Most of the time for 4X enlargement. Images come out sharper and better than the original image in every way. Very small text gets messed up when trying to got to 16X. Be ware, if file is named with odd characters (non letters) the images will not process. Discovered this by accident. I highly recommend this great little app.

This app only worked a couple of times and now it's useless. It doesn't work at all anymore. They really need to fix this if they're charging money for it.

Bought it, gave them my $2.99 then not a single image I tried works the app does nothing. Dont bother.