샤이썬 is an app that helps with the enrollment process at Seoul National University. It offers several useful features for students.

One of the main features is the vacancy notification. Users can mark their favorite lectures and receive push notifications when a seat becomes available.

Another useful feature is the lecture-specific chat rooms. Students can join chat rooms assigned to each lecture to ask questions and get information before enrolling or during the semester.

The app also enhances the lecture search function by excluding previously taken lectures and classes that conflict with the current semester schedule.

Users can create their own timetables and calculate credits by adding previously taken lectures. The app automatically excludes duplicate search results and calculates credits.

Additionally, the app provides updates on any changes in the course handbook, such as cancellations or changes in lecture times.

Other features include drop rate notifications, automatic login for seamless enrollment, a marketplace for exchanging lectures and books, a bulletin board for missed push notifications, and various other notifications related to course enrollment.

Please note that 샤이썬 was created through the 스누라이프 SANDBOX event by developers Taekmin Kim and Yonghun Lee.

For any inquiries, you can contact the developer via email at