Does exactly what is advertised
I bought this on a whim, figuring if it didnt actually work Id only have spent a dollar. Much to my pleasant surprise, this program does exactly what it advertises it will do - it extracts files from WinRAR archives. The design of the interface is not fantastic - it took me a moment or three to figure out how to actually get to the files Id extracted. You need to be extracting files that the iDevice knows how to use - in my case, a few JPG files to use as backgrounds/wallpapers, but as long as you can do something with the files - process them in some app on your iDevice, then this will work as desired. I dont know about advanced features - password protection, etc, but for the basic issue: extracting files, well, this program did that and very easily, no fuss, no muss. I installed it, clicked on a download link for a file with a .RAR extension in Safari, and when Safari prompted me to use another program to open the file, I chose RARExtractor and it opened the archive. Then, I figured out the interface and went to the contents of the RAR, and tapped on a JPG, which allowed me to save it to my photostream, and from there I could make it a background.
Lymang about
RarExtractor - Extract RAR,ZIP