Both should have the same question bank. I actually had the gleim atp prep software and used it on my laptop. It worked really great. It had a lot of features such as it would remember the questions you got wrong and showed you a lot of statistics on what areas you needed more work with. If you are thinking about sharing the software with your friends, it won't allow you to do that. Luckily I passed the written test but now if I want to use it to study for interviews or what not I'll have to buy another copy.