Gauth is free to download, but Gauth Plus costs $11.99 a month or $99.99 a year on the US App Store. Gauth does not publish how many free questions you get.
Gauth is free to download and use for basic question solving, but Gauth sells paid upgrades through a subscription called Gauth Plus. In the guides we publish here at Chalkbox, we review homework and classroom tools so families and teachers know the costs before setting up accounts. The free version lets you take a photo of a problem and get steps, but Gauth does not publish how many free questions you get. Gauth Plus costs $11.99 a month, $31.99 a quarter or $99.99 a year on the US App Store.
In fact, the official Gauth Google Play listing contradicts itself regarding unpaid usage. In one sentence, the store description says Gauth offers unlimited answers for all subjects. Further down, the same listing names unlimited answers and explanations as a Gauth Plus benefit. To find your own free limit, check what the Gauth app shows you.
If you choose to purchase an upgrade, the United States Apple App Store lists clear subscription rates for Gauth Plus. The listing notes that actual prices and introductory promotions depend on in-app display and regional adjustments.
| Plan | Listed Price (US App Store) | Billing | Details |
|---|---|---|---|
| Free Tier | $0.00 | None | Photo problem recognition, basic automated steps, subjects including math and science |
| Gauth Plus Monthly | $11.99 | Monthly, auto-renews | Unlimited answers, 100M+ question bank, 24/7 tutor help (per Google Play) |
| Gauth Plus Quarterly | $31.99 | Every 3 months | Optional 3-day intro trial on select store packages |
| Gauth Plus Annual | $99.99 | Once a year | Lowest monthly equivalent of the three list prices, and a 3-day free trial plan is listed |
Gauth Plus is a paid subscription tier designed to remove limits on answers and grant access to advanced tutoring tools. The gauth.com sidebar advertises Gauth Plus with "Unlimited Answers" and "Gauth AI Pro". Gauth lists Math, Biology, Physics, Chemistry and Others as its subjects.
According to the official Google Play store entry, Gauth Plus adds:
Gauth provides two separate tutoring systems that work differently. The AI Live Tutor is an AI tutor you talk to by voice, and it explains problems on a virtual whiteboard. No human teacher is on the other end of the AI Live Tutor. For human help, the App Store listing promises 24/7 support from "a global network of subject matter experts". The gauth.com home page says "Thousands of real tutors are available 24/7" and promises "Solutions within as little as 5 minutes".
Other tools in the suite include a Study Converter that turns uploaded notes or audio recordings into flashcards and practice quizzes. Gauth also lists a "DeepThinking" mode and a study toolbox with reading, writing, focus mode and calculator tools. If you use Gauth mainly for math, our guide to AI for learning math covers more ways to study with AI.
Gauth offers 3-day free trials on select subscription packages, but the trial converts to a recurring charge unless you cancel early. On the Apple App Store, Gauth lists 3-day trials attached to both quarterly and annual tiers, such as the $31.99 quarterly trial and the $99.99 annual package. The gauth.com sidebar also shows a Start Free Trial button but does not state the trial length.
The App Store listing sets the renewal rules:
To cancel, turn off auto-renew for Gauth in your phone's subscription settings. Set a personal reminder on your calendar for the second day of the trial. If you wait until the final hours of the third day, the App Store may charge your account before you turn off the renewal switch.
Gauth's Terms set a minimum age of 13 and say not to use Gauth on schoolwork when your school forbids it. The public store ratings list Gauth as Everyone on Google Play and 4+ on the Apple App Store. Those are store content ratings. Gauth's Terms set the age rule separately.
The official Gauth Terms of Service require every account holder to be at least 13 years old. If you are between age 13 and the age of legal majority where you live, the terms state that you must have express permission and consent from a parent or legal guardian. Gauth's rest-of-world Terms say the services are provided by Gauthtech Pte. Ltd., a company registered in Singapore. The Gauth US Terms of Service name TikTok USDS Joint Venture LLC as the US operator.
Gauth's Terms also say users "commit to upholding the highest standards of academic integrity." The Terms say not to use Gauth "to complete exams, quizzes, or assignments when such actions are prohibited by your academic institution." The gauth.com footer adds: "Gauth is an AI study companion designed to support learning, not a substitute for students' own work."
Each school sets its own rules on AI use and its own consequences for breaking them. Our guide on whether using AI is cheating covers how to use AI within your school's rules. If you copy down an automated answer without working through the algebra yourself, you skip the mental practice needed to pass in-person tests.
You do not need to buy Gauth Plus to get step-by-step assistance with high school or college coursework. Photomath, Desmos, Khanmigo and ChatGPT each cover part of the same job for free or for less. You can review our list of Gauth alternatives and read about specialized AI math tools for students to compare broader options.
| Tool | Developer | Price | Best For |
|---|---|---|---|
| Photomath | Google LLC | Basic $0, Plus $9.99/month or $69.99/year | Photo scans of handwritten equations, with free step-by-step explanations |
| Desmos | Desmos Studio PBC | Completely free | Interactive graphing, function plotting, coordinate geometry |
| Khanmigo | Khan Academy | Learners $4/month or $44/year, free tools for teachers | Socratic coaching with guiding questions, not direct answers |
| ChatGPT | OpenAI | Free plan ($0 per month) with usage limits | General text-based logic, biology questions, physics explanations |
Photomath handles camera scans of arithmetic, algebra, and calculus problems. The basic version costs $0 and includes step-by-step explanations, custom visual aids, and extra "how" and "why" tips. The optional Photomath Plus upgrade costs $9.99 monthly or $69.99 annually to add textbook solutions and animated tutorials. Our guide to whether Photomath is free covers Photomath's plans in more detail.
Desmos Studio operates as a Public Benefit Corporation and provides its entire graphing calculator suite at no charge to more than 75 million people worldwide. Desmos does not describe a photo-solve feature, so use Desmos to graph linear equations, parabolas and calculus curves and check your work visually.
If you prefer guided questions over direct answer keys, Khanmigo costs $4 per month or $44 annually. Khanmigo acts as an interactive tutor across almost every subject. Instead of giving you the final result, Khanmigo prompts you to think through the underlying principles yourself. If you want to compare other guided learning options, browse our list of Khanmigo alternatives. ChatGPT's Free plan costs $0 and includes unlimited text chats with GPT-5.6 Luna, subject to abuse guardrails.
Gauth Plus is not necessary for every learner. If you only use homework apps now and then to check an answer, the free version of Gauth or a dedicated graphing calculator handles the job without adding a monthly credit card charge.
Paying for Gauth Plus makes practical sense only if you routinely study complex scientific equations outside school hours and rely heavily on continuous multi-step explanations. If you hit the free limit often and use the video library or the human tutors, the $99.99 annual plan works out cheapest per month of the three US list prices.
Because Gauth does not publish its free limit, download Gauth this week and solve a few homework problems on the free tier before considering any subscription.
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No, you do not have to pay to download or use Gauth. The free version of Gauth lets you photograph questions across subjects like math and science without charging an upfront fee. An optional subscription called Gauth Plus costs money if you want features like advanced tutor help and unlimited answers.
Gauth does not publish an official free-question limit. Gauth's Google Play listing states in one line that it offers unlimited answers, yet it also lists unlimited answers as a paid Plus feature. Check what the Gauth app shows you to see how many free answers you have left.
On the United States App Store, Gauth Plus costs $11.99 per month on monthly auto-renewal, $31.99 per quarter, or $99.99 per year on annual auto-renewal. In-app offers and regional pricing can change these specific figures.
Yes, Gauth offers 3-day free trials on select plans through the Apple App Store, including quarterly and annual subscription tiers. If you do not cancel at least 24 hours before the 3-day window ends, your store account gets charged automatically.
You must be at least 13 years old to use Gauth according to its official Terms of Service. Anyone under the age of majority in their jurisdiction must also have express permission and consent from a parent or legal guardian.