swaey reads the slide, pdf or lecture on your screen and teaches it like a patient tutor: one step at a time, drawing as it talks, at your pace.
free to start: 10 tries, no card. macOS 15 or later on apple silicon.
this is how a lesson goes: swaey talks, the board fills in, and you can stop it any time. the buttons work like your voice.
put your working on screen: typed notes, a pdf, or a clear photo of your notebook. ask swaey where you went wrong and it reads your working line by line, rings the exact slip, and shows the right move from there. no lecture on the whole chapter. just your mistake, said kindly.
explain where i went wrong
i don’t get why my answer is different
each of these is something swaey does today, on whatever is on your screen.
the slide jumps two lines at once. swaey writes the working out on its board one line at a time, lined up on the equals sign, each line saying why it follows. the step people trip on is never skipped.
“explain how they got this line”where most people go wrong (mass and weight, a forgotten negative root), swaey says the wrong idea out loud and shows exactly why it fails, so it can’t catch you in the exam.
“explain why the heavier one doesn’t land first”tell swaey once what you study, like class 11 or first-year nursing. it remembers, and picks its words, its examples and how much it assumes to fit you.
“remember i’m in class 12, cbse”real structures drawn bond by bond, with the functional groups shaded and named. mechanisms like sn1 and sn2 get every step, the transition state, and the reagent on each arrow.
“explain this mechanism”swaey traces the code in a table, one row per pass, so you watch each variable change. then it asks what the code prints for a different input.
“explain what this code does”two dice become a 6 × 6 grid of every outcome, with the ones you want lit up, so you count instead of guess. choices in a row become a tree with the chance on each branch.
“explain this probability question”it plots the real function on real axes, marks the roots and turning points, shades the area for an integral and draws the tangent for a derivative, while it talks.
“explain this graph”a free-body diagram with the angles worked out exactly, one force at a time. circuits get real symbols, with the voltmeter across the part it measures.
“draw the forces on this block”a pointer flies to the button you need, in excel, matlab or any app, and waits for your click before it shows you the next one.
“how do i make a pivot table?”hover over the symbol, or select the line, and say “explain this”. swaey takes a sharp close-up of that spot, so a tiny subscript or a minus sign isn’t misread, and explains that part, not the whole page. a lecture that’s playing pauses on the frame it’s explaining, and waits for you to say “play”.
explain this
i don’t understand this symbol
explain why it’s sin and not cos
walk me through this graph
real tutors let you stop them mid-sentence. so does swaey. talk over it whenever you like. and if it still didn’t click, it won’t just say the same thing louder.
wait· hold on | it holds the lesson until you say “go on” |
|---|---|
repeat that· say that again | it says that step again |
go back | it returns to the step before |
| ask anything | “why is friction pointing up?” it stops and answers, with the lesson in mind |
i still don’t get it· simpler | it explains it again another way: a new picture or analogy, smaller steps, none of the same sentences |
stop | it ends the lesson |
every lesson ends with one question that makes you use the idea yourself, on a new case: a different number, a what-if. never the question you just asked. answer out loud and it tells you if you’re right, and why, so the gap closes now and not in the exam hall.
a ball is thrown straight up. at the very top, what is its speed?
no. it explains how to get there, step by step, and ends with a question for you to answer on a new case. it’s built to help you understand, not to hand something in.
yes. put your working on screen (typed, a pdf, or a clear photo of your notebook) and say “explain where i went wrong”. it finds the line with the slip, shows why it’s wrong, and carries on correctly from there.
whatever is on your screen: slides, pdfs, textbooks, a paused lecture, websites and code. its board draws worked maths, real graphs, molecules and mechanisms, free-body diagrams, circuits, venn diagrams, probability grids and code traces, so it’s strongest in maths, the sciences and computer science.
no. it looks only when you ask (“explain this”), and the privacy tab lists every time it did. your voice never leaves your mac.
your first 10 tries are free, with no card and no account. pro is $15 a month or $120 a year (your local price at checkout) for everyday use, and you get 10% off with your school email (.edu, .ac.uk and the like). cancel anytime.
macs with apple silicon (M1 and newer) on macOS 15 or later. it’s mac only, on purpose.
your next “i don’t get it” is a sentence away.
macOS 15 or later on apple silicon. prices shown in your currency at checkout.