Your standards-based gradebook with rubrics and lesson planner

Manage your every day as a teacher with a simple and easy-to-use application

Discover the main features and potential

500 million grades created
3 million of students managed
+ 150 features
+ 30 years in the education sector
Disponible para smartphone, tablets y dispositivos de sobremesa

Work offline optimizing your time anywhere

Available in all the devices you use every day

Sign up now and discover the best application to manage your classes

Tablet mostrando la aplicación Collaborate


It adds the ability to share groups, grades structure, standards and more

Additio App Collaborate integrates all the Additio Plus features. In addition, administrators will enjoy a powerful school management panel.
Additio App practices fully support the requirements of FERPA and LOPD. We will never sell your information to anyone. We thoroughly follow secure coding practices for applications and perform regular code check-ups. We also carry out tests by independent researchers.

Teachers from thousands of schools around the world trust us