GrabIt is a Windows-only program. There may be a Mac version in the future, but if you have already switched over to the Mac then you might like our Super-NZB downloader. Super-NZB runs on all version of Mac OS X, as well as Windows. Super-NZB doesn’t have a built-in search feature like GrabIt, however there are many free Usenet search engines available, such as Binsearch.