Help Centre: Getting Started, Solving and Billing

Type the problem into the box on the solver and send it. The answer streams back as numbered steps with a reason attached to each move, and the final answer sits in its own block at the bottom. You do not need an account for the first one.

Type as much of the question as you have. “Part (b) only” or “we have to use substitution, not parts” genuinely changes the answer you get back, because those constraints go to the model along with the problem.

One full solution as a guest, then 3 a day once you have a free account, resetting at midnight UTC. Follow-ups never count. Gauth Plus removes the daily cap; the pricing page has the plans and what each one costs.

Use the image button beside the input, or paste a screenshot directly into the box. Images need to be under 4.5 MB.

Three things make a photo work. Get the entire question inside the frame, including the question number and any diagram it refers to — the model sees only what is in the image, and a figure on the previous page might as well not exist. Avoid glare and shadow across the working. And if the photo is one part of a multi-part question, crop to that part and type the previous answer alongside it, rather than sending the whole page and hoping the right part is picked up.

Once an answer is on screen, keep typing in the same box. Questions like “why is step three valid?”, “what if the exponent were negative?” or “can you do this without the quotient rule?” are answered against the solution already in front of you, because the recent turns of the conversation are sent along as context.

Follow-ups need an account and never consume quota. Sending a brand new problem starts a fresh thread and does consume one.

Your account pageshows your plan, your renewal date, and how many free solutions are left today. Plus subscribers get a billing portal button there, which opens Stripe’s own portal — that is where you change a card, download invoices, switch plan, or cancel.

Cancelling keeps your access until the end of the period you have already paid for; it does not cut you off immediately. Payments and card details are handled entirely by Stripe, so we never see a card number. The billing terms are set out in full in the terms of service.

Assume it might be. Start by reading the justification on each step rather than the algebra: the failure is usually a step whose stated reason does not match what the line actually did. Then substitute the answer back into the original problem, which settles most equation questions in fifteen seconds.

If you still think it is wrong, say so in a follow-up and name the step. That often produces a corrected solution. If it does not, email the problem and the answer to team@gauth.io. The accuracy page covers the specific categories where solutions degrade and a longer checking routine worth learning anyway.