Provoc is a pretty powerful studying tool. The interface is easy to use and understand and looks very Mac-like. It gives you the choice of either inputting your own studying information or downloading study material from their website. Both have advantages and disadvantages, but many of the material packs on their website are good for basic language learning. If you want something more advanced or specialized you are better inputting it your self.
Once you have the materials ready to study, you can put them into tests and take them. You even have a nice preferences menu in which you can decide how strict or forgiving your tests are. While taking a test, you can go into full screen mode to block out distractions.
All in all, the material, tests and preferences menu are top notch. I wish I'd had this to use while studying in college.
