Effner is an iPhone app designed specifically for students at Josef-Effner-Gymanisum. It provides a comprehensive platform for accessing their timetables, substitution plans, homework assignments, and much more. Developed by Luis Bros, this app aims to streamline the school experience for students by offering all the necessary information in one place.

With Effner, students can easily view their daily and weekly schedules, ensuring they never miss a class or activity. The app also provides real-time updates on substitution plans, allowing students to stay informed about any changes to their usual timetable. Additionally, Effner allows students to keep track of their homework assignments, ensuring they stay organized and on top of their academic responsibilities.

Effner is a free app, making it accessible to all students at Josef-Effner-Gymanisum. It falls under the Education & Reference category, catering specifically to the needs of students in an academic setting. Overall, Effner offers a convenient and user-friendly platform for students to manage their school-related tasks efficiently.