Super PhotoCut is a program that enables you to remove background areas from your pictures. This utility might come in handy if you need to extract a certain element from a photo and export it as a new picture, with a transparent background.
The application supports multiple input formats, allows you to compare the original pictures with the results, and provides you with easy-to-configure output settings. What's more, it gives you access to various visual effects which can be applied for the background areas from the imported images. For example, you can blur the background area from a portrait image.
An important disadvantage is the fact that you cannot export any edited images if you're using the trial version of the application. So, you can't be 100% sure that the program preserves the quality of the image. Also, there's no way of telling which are the supported output formats.
Another thing you need to consider is the fact that you can find cheaper solutions for removing background areas from your pictures.
With that being said, I don't think it's worth buying this program for your Mac.