Duolingo

“Vanta. Trust and compliance automation platform used by Cursor, Ramp, Duolingo, Snowflake, and Atlassian.”

“Duolingo is not deep learning. It is particularly suited to practice like English... Duolingo's learning, we feel, is more biased toward System 1 learning, whereas Onion, including Khan Academy, and in fact most of the K-12 stage subject learning, is biased toward System 2 deep logic chain learning.”