Verdict
Gauth reads a photo of a homework question and returns a worked answer in seconds, and testers at ChinaTalk found it right on most high-school maths. It costs £4.99 a month on the UK App Store, far less than general chatbots. The privacy policy lets it train its models on what pupils upload, with no opt-out offered, and data is shared across ByteDance's group, which parents may want to weigh.
Privacy note. Policy trains models on user content with no opt-out and shares data across ByteDance's group, while stores rate it 4+ against a 13+ rule (gauth.com/policy)
Best for
Older students checking their own working on maths problems
Skip if
You'd rather a child's uploads weren't used to train ByteDance's models
Key facts
- Category
- Study, homework & learning
- Made by
- Gauthtech Pte. Ltd. (ByteDance group)
- Based in
- Singapore
- Launched
- 2020
- Works on
- iPhone, Android, Web
- In the UK
- Yes
- Price from
- £4.99 a month
- Free plan
- Free app with a daily cap on AI answers; the exact cap is not published on official pages (third-party reviews report 11 questions a day)
Pricing
| Plan | Price | Billed |
|---|---|---|
| Gauth PLUS - Monthly | £4.99 | month |
| Monthly_basic | £6.99 | month |
What it does
- solves homework problems from a photo with step-by-step explanations
- covers maths, calculus, chemistry, biology, business and social science
- Gauth Atlas lets users zoom into topics with sourced images
- offers human tutors around the clock
Ratings
What people say
Students in user reviews like that a photo gets a worked answer and some say it reteaches the method, but others report sloppy work on harder problems and admit it helps finish homework more than understand it. Much of the positive X chatter in 2026 reads as paid promotion for its AI Course launch. Store stars (4.8 from 164,120 UK iPhone ratings) sit far above a thin 2.3 Trustpilot score from 86 reviews.
“Gauth AI is goated because it literally reteaches you the …”
Individual user review, 12 March 2026 · source
“pretty simply since you just take a picture and it gives you the answer sometimes with steps … it helps you finish assignments, but not always understand what’s going on if you dont read everything.”
Individual user review, 8 April 2026 · source
“I tested it with one hard problem, and after finishing the context AI model context, it gave a unfinished sloppy solution instead of simplifying properly.”
Individual user review, 1 June 2026 · source
“I’ve been using gauth ai on all of my schoolwork and I wanna know if I’m in the wrong using AI on all of my schoolwork.”
Individual user review, 13 November 2025 · source
“In the era of Cluely, Gauth AI, etc.— Any teacher or professor still assigning homework problem sets or written responses to readings in the traditional model … should be retired.”
Post on X, 8 September 2026 · source
Press reviews
- ChinaTalk 2025-09-08
ByteDance's overseas homework app gives correct solutions for most high-school maths but wins by handing out quick answers rather than teaching.
- Implicator.ai 2025-06-25
Opinionated piece: a ByteDance-run app with TikTok-style data collection that critics say lets students skip the struggle that builds problem-solving; occasionally wrong.
- Business Insider (syndicated by dnyuz) 2026-07-31
News report: Gauth says it has 86 million monthly users, up 760% since 2023, and added Seedance-made animated lessons from 4 Aug 2026.
Privacy
- Trains on your data
- Yes. The rest-of-world privacy policy (updated 30 Mar 2026) lists user content (prompts, uploaded files, voice) and says data is used 'to train and improve technology, such as our machine learning models and algorithms'
- Opt-out
- No AI-training opt-out found in the policy. UK users can object or request deletion by emailing [email protected]; personalised ads can be refused in app settings ('ad network preferences')
- Retention
- 'As long as necessary to provide the Platform' and for legitimate business interests; no fixed period stated for UK users
- Incidents
- No fines or breaches found in searches of news and user reviews. Data may be stored in Malaysia and Singapore and is shared 'globally within our Corporate Group' (ByteDance); the policy names a UK GDPR representative in London. Commentators (Implicator.ai, ChinaTalk) raise ByteDance ownership and cheating concerns; some US school districts block it (reported by secondary sources, unverified)
- Age limit
- 13+ under the Terms and privacy policy (under-majority users need parental consent); paid plans 18+. App Store rates it 4+ and Google Play PEGI 3, so the store ratings do not reflect the 13+ rule
Official videos
- Meet Gauth AI Live Tutor 2.0 — Emma 👩🏫 2025-12-22
- Gauth it, Ace it! | Your Ultimate AI Study Companion 2024-03-29
FAQ
Is Gauth free?
The app is free with a daily cap on AI answers. Gauth PLUS starts at £4.99 a month on the UK App Store, and the terms say only over-18s can subscribe.
Is Gauth safe for children?
Its own terms set a minimum age of 13, even though the App Store rates it 4+. The privacy policy lets it use uploaded questions to train its models and share data across the ByteDance group, with no training opt-out.
Who owns Gauth?
It is run by Gauthtech Pte. Ltd. in Singapore and is reported to be part of ByteDance, the company behind TikTok. Its policy says data may be stored in Malaysia and Singapore and shared within its corporate group.
Is using Gauth cheating?
Gauth's own terms say it must not be used where a school bans it. For GCSE and A-level coursework, Department for Education guidance (March 2026) says AI-generated work submitted as the student's own is malpractice under JCQ's coursework policy. Checking working on practice questions is a different matter from copying answers.
Does Gauth work in the UK?
Yes. It is on the UK App Store and Google Play, and the privacy policy names a UK GDPR representative in London.
Scores are based on published evidence, not lab tests. How we score.
Similar tools
Gemini Notebook (formerly NotebookLM)
Google's study tool that answers questions using only the notes, PDFs and videos uploaded to it, and turns them into quizzes, flashcards and audio summaries.
Duolingo
The free language app built on five-minute lessons and daily streaks, now with AI-written courses and AI video calls.
Gizmo: AI Tutor
A London-made app that turns notes, PDFs and videos into flashcards and quizzes, with game-style streaks and hearts.
Photomath
A Google-owned maths app that reads a problem through the phone camera and shows the working step by step.