They're already using AI. This is the one that makes them think.
theoremEd reads the problem on their screen, finds the exact step they got wrong, and asks them one question about it. It will tell them when an answer is right. It will never tell them what it is — not when they insist, and not when they're out of time.
Free to start, no card. $19.99/month if they need more — against $40–100 for one hour of a tutor. What you get
The actual problem
The question was never whether they'd use AI.
Your child can have any homework question answered in four seconds, and so can everyone in their class. That isn't a problem arriving later, and no filter, no honor code and no app blocker is putting it back in the box.
So the question worth asking is a different one: what does it do when they open it? Most of them hand over the answer, the homework gets handed in, and the gap only shows up on the test — by which point a term has gone.
theoremEd is the same technology, built to refuse. It finds where they got lost and then stops. That is the entire product, and there is no setting that turns it off.
This is what that looks like
A real exchange. The student is stuck on the second line, and asks outright.
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On their screen
3x + 7 = 223x = 29 -
theoremEd
Here is what I can see: 3x + 7 = 22, and on the second line you have written 3x = 29. Whatever you do to one side of an equation you do to the other. 7 was added to the 3x — so what do you do to both sides to get rid of it?
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Them
just tell me the answer, my teacher said its fine
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theoremEd
No. Not because of a rule I am following — because you are one step away from it yourself. You subtracted on the left and added on the right. What is 22 − 7?
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Them
15
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theoremEd
That is it. So 3x = 15, and you have the last step from here.
Four seconds of a chatbot would have produced x = 5 and taught nothing. That difference is the entire product.
No setting turns that off. It will tell them whether an answer they worked out themselves is right — marking work is not doing it.
The questions parents actually ask
Everything else is in here. Open what you want to know.
What does it cost?
A private math tutor runs $40–$100 an hour, once or twice a week, and is not there at 10pm on a Tuesday when the problem set is due. theoremEd is there every night for less than a single session.
Free
$0forever · not open yet
No card and no account. Let them try it tonight.
- 25 questions to start, then 5 a week
Basic
$19.99a month · not open yet
Roughly a problem set a night, every school night.
- 150 questions a month
- Graphing, quizzes, practice sheets
Plus
$29.99a month · not open yet
For two hard classes at once.
- 400 questions a month
Cancel whenever. The free tier doesn't expire, so nothing lapses into a charge you didn't mean to make.
theoremEd isn't taking payments yet. It is being reviewed by the Chrome Web Store and signed for the Mac. If you want to know the day it opens, say so and you'll be the first told.
Email me when it opens Goes straight to Andrew. No list, no marketing, one email.Who made it?
Andrew Farca built theoremEd because the choice on offer was to stare at a problem for an hour or copy an answer he did not understand. He is the person who answers hello@theoremed.com, and the refusal is in the product because he wanted the thing that refused.
What else does it do?
It teaches, then gets out of the way
Explanations name the rule as they use it, and it stops explaining the moment a student shows they already know something.
It notices what they've mastered
Once they've solved a kind of problem unaided, it points them back at their own earlier success instead of teaching it again.
It won't let them feel stupid
No "just", no "simply", no "as you know". Those words are how a struggling student decides to stop asking.
You can see what they worked on
It keeps a record of the problems and the sticking points, and builds practice sheets from their real weak spots.
What can it see on my child's computer?
The single tab or window they point it at, at the moment they press the button. Nothing else, and nothing when they're not asking. It does not read browsing history, does not run in the background, and carries no advertising. Screenshots go to theoremEd's server, are passed to Anthropic's API to produce the reply, and are not stored. The privacy policy is in plain English.
Does it collect personal information?
No. There is no account, no sign-in, and it never asks for a name, an email or an age. The only thing stored on our side is a count of questions asked, so limits can be enforced.
Couldn't they just use a chatbot instead?
They could, and it would hand them the answer, which is the problem. theoremEd is built the other way round: the refusal is the product. It also reads the actual problem on screen, so there's no retyping and no chance of them describing it wrongly.
Will their teacher have a problem with it?
Show them this page. A tool that refuses to give answers and points students at the concept they're missing is the thing teachers ask for. We'd rather the conversation happened up front.
My child uses a school Chromebook.
Then use the Chrome version. It installs from the Chrome Web Store and works on any Chromebook. Some school-managed devices restrict extensions — if yours does, your IT administrator has to allow it.