Lecture slides and messy notes become narrated 3D explainers. Circle anything to ask, and the lesson redraws itself while you watch.
How it works
PDF slides, a textbook chapter, photos of your notebook, or just a topic.
A narrated explainer built for you, with 3D where space matters and diagrams where it doesn’t.
Circle anything you don’t get. The tutor answers inside the scene, right then.

Circle to ask
Ask about the exact moment you’re watching. The tutor answers and changes that scene right there. No re-render, no waiting.
That’s the liver. In right-sided failure, blood backs up into it, so it swells and gets congested.
Built for how you actually study
Even your messy handwriting. It reads it all and follows your course, not the internet.
A beating heart, lungs filling with fluid, kidneys in the loop: the parts that matter, in 3D.
A calm voice, captions and chapters. Quick recap, standard or deep dive: you pick.
Draw on the frame to ask about that exact spot, at that exact moment.
Zooms, highlights and answer cards appear in the lesson itself. Undo anytime.
Send your study group the lesson. It plays live in their browser, no download.
Pricing
Quick lesson 20 credits · standard 45 · deep dive 90 · each question 1–2
Better: your lesson is animation code that plays live in your browser, in sync with the narration. That’s why it can change the moment you ask something. Share links play the same live lesson; MP4 download is coming.
Nursing and pre-med students first: A&P, pathophysiology, pharmacology, med-surg. Anything that clicks once you see it move.
Lessons are written from your own material and stay close to it. Always check against your course, your instructor and your facility’s protocols.
Free to start with 60 credits a month. Slay+ is $20/month for 600 credits, and top-ups never expire. A quick lesson is 20 credits; questions are 1–2.