Gradr is a service provided by Tribble AS. We are a software company in Trondheim, Norway, founded by Alexander Carlsen and Gaute W. Rønning.

Our vision is to make grading and evaluating students both less time consuming for teachers and more tailored to the individual student.

Since launching in August 2023, Gradr has helped more than 2 000 teachers in their daily work, and the number of schools and teachers using the service is growing rapidly.

Our core values are transparency, honesty, and innovation.

We are also committed to ensuring that technological innovation does not come at the cost of privacy protection. Therefore, we always focus on data security and personal privacy and do not use data from students and teachers to train our machine learning models.

We are actively working to expand the features offered in Gradr to assist teachers in their teaching work, improve the accuracy of our plagiarism tool, and support additional languages.