yNotes, an Android application developed by JsonLines, is a French Open Source app that provides you with access to your school services in a simple, modern, and secure environment. With yNotes, you can access École Directe (STATIM SAS ©), Pronote (INDEX ÉDUCATION), and the ENT Ile de France directly.

This app is still in development, but it already has several features. You can access your grades, homework, and school applications like messaging and cloud storage. Additionally, yNotes has a built-in agenda that allows you to view course details, modify class times, add your own events, and set reminders. You can even use yNotes offline, making it convenient for students on the go.

Overall, yNotes is a promising app that can help students stay organized and on top of their studies. Once it's fully developed, it has the potential to become a must-have tool for students in France.