For students
Learn it by living it.
Every subject becomes a 3D world you can walk through, rewind and replay — adapted to how you learn best, not a one-size-fits-all video.
One scene, four ways in
A story first, never a slide deck
Every lesson opens with a real character and a real stake. From there, saki leans into however you learn — more camera moves and labels, full narration, written notes, or hands-on controls.
Remember it
Review that actually sticks
Spaced-repetition flashcards, a concept web of everything you've learned, and a walkable memory palace bring facts back right before they'd fade.
Biology mastery
Physics mastery
Never stuck alone
A study group and a legend, one tap away
Ask Newton, Curie or Mendel a question directly, or drop into a study group's live room with classmates working the same flagship lesson.
Exam season, handled
A study plan built around you
Exam Prep & Study Planner turns your mastery data into mock tests and a day-by-day revision schedule, so you spend time where it counts.
Leaderboard rank
#3
Longest streak
19 days
Frequently asked questions
Do I need any special equipment?
No — saki runs in your browser or the mobile app on any recent phone, tablet or laptop. A headset is optional for the fully immersive mode.
What if I get stuck on a concept?
Ask Saki out loud or by typing, point your camera at a diagram with Saki Lens, or open the Mistake Doctor to see exactly where a wrong answer went sideways.
How does saki know how I learn best?
A short onboarding quiz plus how you actually interact with lessons builds your VARK profile, and every scene adapts its mix of visuals, narration, text and hands-on challenges to match it.
Can I use saki for exam revision?
Yes — Exam Prep & Study Planner builds mock tests and a day-by-day plan around exactly what you still need to review, backed by spaced-repetition flashcards.
Is there a free plan?
Yes. The Free plan includes the full Heart flagship lesson, 10 flashcards a day and community forum access — upgrade to Plus any time for the full catalog.
Ready to step inside your next lesson?
Start free with the heart flagship lesson — no card required.