Turnitin

Turnitin sells cloud software for similarity checking, AI-writing detection, grading and feedback, and secure assessment. Its products include Feedback Studio, iThenticate, Gradescope, ExamSoft and Ouriginal. It sells through institutional subscriptions to thousands of schools, universities, certification and licensing bodies, and publishers. Turnitin has been a subsidiary of Advance Publications since its 2019 acquisition, and it reports use by 16,000+ institutions. Revenue figures are not public.