iTsinghua app for iPhone and iPad

iTsinghua had been accepted into the App Store once last year with the name of "清华学堂", this time we have delete that application because of the developer account change and want to re-upload the application to the App Store with the name of "iTsinghua".
This application is designed only for the students of Tsinghua University. Only the students of the university have the accounts to log into this application. No other way to register a new account. Tsinghua Web School (http://learn.tsinghua.edu.cn) is a very old website, and it does not have a mobile version, so students with iOS machines can not easily use it. But our application can help them solve this problem. Student with our application could browse the homeworks and notifications of his or her courses, and directly read the course documents.
There are four tabs in the application: homework, note, file and setting.
In the homework tab student can view the state or the content of their homework. In the note tab students can view their notes of their class. In the file tab student can view files of the class, students need do download files they need to watch.
The first view of each tab is nearly the same with a list of the student`s classes, and each student has his/her own classes list.Student need to choose the class to see the next view of homework list or notes list or the file list.