오노! - 우리들의 오답노트

Mistake Note is a study aid app that systematically organizes your mistakes while studying,
and allows you to repeat study and even take mock exams based on saved questions.

✔ Create your own questions, answers, and explanations
✔ Manage your saved Mistake Note list
✔ Mock exam function based on Mistake Note
✔ All data is stored locally on your device
✔ No ads / No unnecessary permissions

To help you focus on your studies, we've removed unnecessary features and complex screens,
and included only the essential functions.

This app operates based on an authentication key,
and all features are available for one year after authentication.