Gauth (Gauthmath) Review
An AI homework helper, formerly known as Gauthmath, that scans a photo of a math or science problem and returns a step-by-step solution.
Is Gauth (Gauthmath) Worth It?
Gauth is worth it for students who need fast, multi-subject homework help and can accept the free tier’s daily question limit. The photo scanner’s step-by-step solutions, now spanning math, science, SAT prep, and writing, make Gauth (formerly Gauthmath) a broader tool than math-only rivals like Photomath. Gauth Plus is worth the upgrade only for students who regularly exceed the free tier’s daily cap, since ByteDance’s ownership and a wave of billing complaints around the auto-renewing trial are real trade-offs to weigh first.
About Gauth (Gauthmath)
Gauth, formerly branded Gauthmath, is an AI homework helper that scans a photo of a math or science problem and returns a step-by-step solution. The app rebranded from Gauthmath to Gauth in 2024, widening its scope from a math-only solver into a multi-subject homework scanner that now covers physics, chemistry, biology, SAT prep, writing, reading, and coding. Gauth is operated by GauthTech Pte. Ltd., a Singapore-based subsidiary of ByteDance, the same corporate parent behind TikTok.
How the Gauth homework scanner works
Gauth AI reads a captured problem, whether typed, printed, or handwritten, matches it to a solving method, and returns a worked, step-by-step answer rather than a single final value. On top of the automated photo solver, Gauth layers Emma, an AI voice tutor that answers follow-up questions aloud, and Gauth Chat, a text-based follow-up that keeps the original problem’s context. For problems the AI can’t resolve, Gauth escalates to live human tutors through a separate add-on plan.
Gauth runs on a free tier with a daily question limit of about 11 questions per day, which covers light homework use before the cap resets on a 24-hour cycle. A Gauth Plus subscription removes that ceiling and unlocks unlimited step-by-step solves, full multi-subject access, and the complete Emma and Gauth Chat experience. Anyone still searching for “Gauthmath” today lands on the same product under its current name, Gauth, with the underlying photo-solving technology unchanged since the rebrand.
Our Verdict
Pros
- Multi-subject coverage spanning math, physics, chemistry, biology, SAT prep, and writing
- Free tier includes about 11 questions per day at no cost
- Step-by-step solutions that explain the method, not just the final answer
- AI tutor Emma and Gauth Chat add follow-up explanations beyond the initial scan
- Handles handwritten problems, not only typed or printed text
Cons
- Billing complaints tied to the 3-day trial’s auto-renewal into a paid plan
- Reduced accuracy on advanced or higher-level topics
- ByteDance ownership raises the same data-jurisdiction questions attached to TikTok
- Collects a broad data profile, including photos, location, contacts, and purchase information
- Daily question limit on the free tier restricts heavier homework loads
- Full multi-subject access and unlimited solves are gated behind Gauth Plus
How It Works
Install Gauth
Get the app from the App Store, Google Play, or use Gauthmath online.
Create an account
Sign up with email or a linked login.
Scan or type the problem
Snap a photo of the question or type it into Gauth.
Read the AI solution
Gauth AI matches the problem to a method and returns a step-by-step answer.
Ask a follow-up
Use Emma or Gauth Chat to get another explanation of a step.
Upgrade if needed
Subscribe to Gauth Plus once the daily free question limit is reached.
Gauth (Gauthmath) Features
Photo Math Solver
Scans printed or handwritten problems and returns a full step-by-step solution.
Multi-Subject AI
Covers physics, chemistry, biology, SAT prep, writing, reading, and coding.
AI Tutor Emma
A voice tutor that answers follow-up questions and explains steps aloud.
Gauth Chat
A text-based follow-up that keeps the original problem's context.
Live Human Tutors
Escalates to a human tutor for problems the AI can't resolve, as a paid add-on.
Gauth (Gauthmath) Pricing
- About 11 questions per day
- Limited AI tutor access
- Partial multi-subject coverage
- Focus mode included
- Unlimited step-by-step solves
- Full multi-subject access
- Full Emma and Gauth Chat access
- 3-day free trial included
- Unlimited step-by-step solves
- Full multi-subject access
- Full Emma and Gauth Chat access
- Lower effective monthly rate
- Unlimited step-by-step solves
- Full multi-subject access
- Full Emma and Gauth Chat access
- Lowest effective monthly rate
Who Is Gauth (Gauthmath) Best For?
The photo solver covers standard algebra and geometry homework with fast, step-by-step checks.
Calculus, physics, and chemistry support works best as a check on worked solutions, not a sole source.
SAT practice questions and a reading simplifier support test prep and non-native English learners.
Gauth (Gauthmath) Alternatives
| Tool | Best for | Price | Notes | Compare |
|---|---|---|---|---|
| Photomath | Math-only depth | From $9.99/mo | Free tier available | vs → |
| Mathway | Step-by-step math | From $9.99/mo | Limited free tier | vs → |
| Symbolab | Symbolic math | From $6.99/mo | Limited free tier | vs → |
| Question.AI | Multi-subject help | From $5.99/week | Free tier available | vs → |
| Gauth — this review | Multi-subject homework | From $11.99/mo | Free tier available |
Gauth vs Photomath
Gauth covers math, science, and reading in one app, while Google-owned Photomath focuses on math only with animated step-by-step solutions. Gauth adds live human tutors as a paid add-on that Photomath doesn't offer, but Photomath's deeper math-only path suits users who want nothing but arithmetic through calculus. Multi-subject breadth wins with Gauth; math-only depth wins with Photomath.
Gauth (Gauthmath) FAQ
Did Gauthmath become Gauth?
Yes. The app rebranded from Gauthmath to Gauth in 2024, widening its scope from a math-only solver to a multi-subject homework scanner. The underlying photo-solving technology carried over under the new name.
Is Gauth free?
Gauth is free to use with a daily limit of about 11 questions. Unlimited access and full step-by-step solutions require a Gauth Plus subscription.
How much does Gauth Plus cost?
Gauth Plus starts from $11.99 per month, with quarterly and annual plans that lower the effective monthly rate to about $10.66 and $8.33. A 3-day free trial auto-renews into a paid plan unless cancelled first.
Is Gauth safe to use?
Gauth is a legitimate app used by millions of students, but it collects a broad data profile, including photos, location, and purchase information, and its ByteDance ownership raises the same data-jurisdiction questions attached to TikTok.
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