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- 20 questions / month
- Quick + Standard depths
- Article format
Teotlin is an AI math tutor for school and university. Type a question and get an article or a short video at your level.
Because “what is a derivative?” is a different question for a curious 14-year-old and a grad student studying control theory.
What is a derivative, really?
Start with average rate of change. Now shrink the interval. The derivative is what that average becomes in the limit — and here's why that limit exists…
Tell Teotlin what you want to learn. Pick a depth. Choose a format. Get an explanation that's actually for you — not a copy-pasted Wikipedia stub.
Type a question in plain language. Drop in a PDF, screenshot, or homework problem — Teotlin reads them too.
How do I solve a quadratic equation?
Screens from the app itself: an answer with its tutor chat, a course in progress, and the map that tracks what you know.

For visual learners. Type a question, hit Video, and Teotlin animates the explanation — moving graphs, transforming equations, narrated end to end.
[0:42] the slope at x=3 is 6.
Start free today. Personal and Pro are coming soon.
$0forever
Try it. No card needed.
$12/ month
For curious learners.
$28/ month
For serious study.
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