Everything an AI tutor should do,
and one thing none of them do
Most tools answer. Santi Tutor teaches: on a board, step by step, with the reasoning left visible so you can follow it.
- Step-by-step explanationsClear, structured, easy to follow.
- Visual diagramsAI draws on the board to make concepts click.
- Saved lessonsRevisit, replay, and build your knowledge.
- Voice tutoringLearn by listening anytime, anywhere.
A real lesson board. Toolbar on the left, live transcript on the right, every stroke replayable.
The board
An AI that draws while it explains
Most AI tools hand you a wall of text. Santi Tutor works the way a good teacher does. It writes on a board, sketches the diagram, labels the sides, boxes the answer, and talks you through each stroke as it happens.
- Handwritten working, drawn stroke by stroke in real time
- Geometry, graphs, circuits, free-body diagrams and timelines
- Colour-coded steps so you can see what changed and why
- Scrub back through any moment of the board like a video
Circle theorem
The angle at the centre is twice the angle at the circumference.
Explanations
Every answer shows its reasoning
Ask for the answer and you get the road to it. Each step names the rule it applies, so you learn the method instead of memorising a result.
- Numbered steps with the rule or theorem behind each one
- "Why this step?" on every line, on demand
- Ask a follow-up mid-lesson without losing the board
- Adjustable depth, from a quick recap to first principles
Step 1
Identify the right angle
Pythagoras applies only here
Step 2
Label the hypotenuse c
Opposite the right angle
Step 3
Substitute a = 3, b = 4
c² = 9 + 16
Step 4
Take the positive root
c = 5, lengths aren't negative
Voice
A teacher's voice, not a robot's
It teaches out loud the way a person does: emphasising the part that matters, slowing down on the hard step, and encouraging you when you're close. Raise your hand and ask, and it stops mid-sentence to listen.
- Expressive delivery with real emphasis and pacing, not flat text-to-speech
- Interrupt any time. It stops, listens, and re-teaches that step differently
- It asks you questions back, and waits for the answer
- Live transcript saved alongside the board
- Works hands free, and in a low-bandwidth audio-only mode
“…so we resolve the weight into two components —”
“Wait, why two?”
“Good, let me redraw the incline with the axes tilted.”
Barge-in acknowledged in under 300ms
Library
Nothing you learn disappears
Every session is saved as a replayable board plus clean notes. Come back the night before an exam and watch the exact explanation that finally made it click.
- Full board replay with the chat transcript in sync
- Auto-generated summary notes for each lesson
- Export to PDF or Markdown
- Organise by subject, topic and exam
- Pythagoras TheoremMathematics01:23
- Titration curvesChemistry04:11
- Free-body diagramsPhysics06:02
- Elasticity of demandEconomics03:47
Replaying a saved lesson costs no tokens
Practice
Practice built from your own lesson
The moment a lesson ends, Santi Tutor generates questions from that exact topic, then marks your working, not just your final answer.
- Questions graded from recall to exam-standard
- Marks your method and points at the line that broke
- Past-paper style sets for WAEC, JAMB, IGCSE and SAT
- Spaced repetition on the topics you keep missing
Question 3 of 8
A ladder 5m long leans against a wall, with its foot 3m from the base. How high up the wall does it reach?
- 3.5 m
- 4 m
- 4.5 m
- 5.8 m
Your method was right. You squared 5 and 3 correctly, then added instead of subtracting. The wall is a leg, not the hypotenuse.
Progress
See what stuck and what didn't
A single view of the topics you've mastered, the ones fading, and the ones you've avoided. Parents and teachers can get the same picture, weekly.
- Topic-level mastery, not vanity streaks
- Weak-topic queue that rebuilds itself as you improve
- Weekly email digest for parents or form teachers
- Study-time and token usage breakdown
Mathematics
Last 30 days
Trigonometry88%
Circle theorems72%
Differentiation46%
Vectors21%
Next up: Vectors. Three questions missed this week, all on resolving components.
Coverage
Any subject. Any course. Any level.
There is no catalogue to pick from. Bring a school subject, a university course, a programming language or a professional certification. It plans the lesson and teaches it the same way.
Sciences & Mathematics
The subjects that need a diagram more than a definition, which is where the board earns its keep.
Mathematics · Further Mathematics · Physics · Chemistry · Biology + 7 more
Technology & Computing
From a first `for` loop to system design. It writes the code on the board and traces it line by line.
Python · JavaScript & TypeScript · Web Development · Data Structures & Algorithms · Data Science + 9 more
Business & Economics
Curves, ledgers and models drawn out, so the mechanism is visible rather than memorised.
Economics · Financial Accounting · Cost Accounting · Business Studies · Entrepreneurship + 5 more
Humanities & Languages
Essays planned, arguments mapped, grammar broken down, with timelines and structure on the board.
English Language · Literature in English · Government · History · Geography + 7 more
Creative & Design
Principles taught visually, because explaining composition without showing it never works.
Graphic Design · UI/UX Design · Digital Marketing · Content Writing · Music Theory + 3 more
Professional & Exam Prep
Syllabus-aligned lessons and past-paper style practice, marked on method rather than final answer.
WAEC & NECO · JAMB / UTME · IGCSE & Cambridge A-Level · SAT & ACT · IELTS & TOEFL + 3 more
See it draw your question
Bring the topic you're actually stuck on. The free trial is enough for a few full lessons.