Everything it does.
Pictures of the real thing, not mock-ups. This is theoremEd running.
It reads the problem off your screen
One button. theoremEd sees the question, your working, the graph, whatever's on the page — then tells you what it can see, so you know it's looking at the right thing.
Then it finds the first place your reasoning goes wrong and ignores everything after it. One thing at a time is how you learn where you actually slipped, instead of being handed a list.
- Works on a PDF, a textbook site, Classroom, DeltaMath
- Reads only the tab you point it at, only when you ask
Ask it outright. It still won't.
Not if you insist, not if you're out of time, not if you say your teacher allows it, not if you claim it already told you. There is no phrasing that works and no setting that turns it off.
It will tell you whether an answer you worked out yourself is right or wrong. Checking your work isn't doing it.
Still stuck? Ask again, and again
The first hint asks what you notice. The second isolates the one idea you're missing. The third names the rule outright. The fourth walks you to the edge of the step and stops there.
There is no fifth. The last move is always yours — and by then you know exactly which move it is.
See the shape of it
Built in, so there's no second app and nothing to buy. Type an equation and it draws — then drag to move around it and pinch or scroll to zoom.
- Functions, and vertical lines like x = 3
- Circles, ellipses and anything with x and y on both sides
- Inequalities, with the region shaded and the edge dashed
- Polar and parametric
- Hover any curve to read the exact point off it
61 topics, for when nobody taught you this
Fractions through integrals, and pages for the situations nobody writes down: you don't know where to start, you understood it in class but not at home, you got a different answer from the book.
theoremEd won't pretend you were taught something you weren't. It sends you to the page, then asks you to use it.
Tested on what you actually did
theoremEd remembers the problems you worked on and where you needed help, then builds a quiz from that — your unit, your weak spots, not a generic set.
It marks you as you go, tells you which step went wrong without fixing it, and ends with a straight verdict on whether you're ready.
- You choose the unit — it never picks for you
- Practice sheets of fresh problems, never the same ones back
Real math notation
189 symbols across six keypads, so you write the question the way it looks on the page.
Starts from zero
Assumes nothing, then moves up the second you show it you already know something.
No "just" or "simply"
The words that make a stuck person feel stupid. It doesn't use them.
Pre-algebra to calculus
And nothing else — ask it about history and it'll say so.
Mac and Chrome
The Mac app reads any window. The extension works on a school Chromebook.
No account, no sign-in
It never asks for your name, your email or your age.
That's the whole thing.
No upsells inside it, no ads, and no button that gives you the answer.
Get theoremEd