Digitales Klassenbuch is an iPhone application developed by Ivo Stichel. It is a free education and reference program that provides students and teachers with access to various features such as the current class schedule, lesson documentation, and more.

For students, Digitales Klassenbuch offers the ability to view the substitution plan, room plan, homework assignments, and much more. Teachers, on the other hand, can access room bookings, substitution plans, teacher schedules, lesson documentation, and other features. Additionally, the app provides class-wide homework diaries, an overview of exams, and many other useful tools.

One standout feature of Digitales Klassenbuch is the push notification system that immediately informs users about any changes in the substitution plan. This ensures that students and teachers are always up-to-date with the latest information.

Please note that the availability of certain features may vary depending on your school's preferences and settings. To find out if your school is included, please consult your teachers or school administration.

Digitales Klassenbuch is constantly evolving, with additional features and updates planned for the future.