You can try Class Buddy.
I use it, and it is a blessing. The devs put to together an app that is equal, if not better than istudez. The devs are also great about answering any issue and taking request for additional features. There is a free version to test if it fits you. I just recommend the paid version. It has more features.
Sorry can't include links, as it is my first post. However, both can be found on appbrain and the android market, just search class buddy or class buddy lite. There is also a class buddy demo. I never used that one.