Notepad by Subject

Easy to use, one digital notebook for all needs.
The annotations are separated by stories for better organization, you can create as many stories as you want, with as many pages as you need.
Very useful for students, it serves to save pictures of the blackboard and other class notes.
The notebook has the following features:
To design
insert texts
Insert images from camera or gallery
insert math expressions

All very simple and without bureaucracy.