A free app for Android, by Jan Novak.
Last update brought a new design and a new shape of events. The new design is more intuitive, the new shape of events is a calendar that allows for greater transparency and also gives you more freedom in the way you want to organize your events.
The gradebook offers an overview of scores and tasks of the selected subject. You can also add tasks for a subject that is not in the gradebook, as well as for a subject that is not in the gradebook but is in the schedule.
In the case of the gradebook, you can decide between different display modes, including categorized. The gradebook can be used to create and organize your schedule.
The application has a color palette that allows you to change the color of the text to the color you want, which is more visible when the color is not white, black, or the background color.