Gauth vs Question AI: 5 AI Tutor Apps Ranked (2026)

AI tutor apps sell an irresistible promise to a stressed student: point your camera at any homework problem and get the answer, the steps, and an explanation in seconds. The pitch is a private tutor in your pocket for the price of an app. The 1-star reviews are where that promise meets an answer that is confidently wrong, a "free" scan whose actual solution is paywalled, and a weekly subscription that auto-charged before the assignment was even due. Across every app in this category the complaints rhyme: the AI hallucinates wrong answers with total confidence, the subscription is sneaky and weekly, the steps are locked behind a paywall, and the refund is refused. This is also a category where searches like "is Gauth legit," "Question AI avis," and "Answer AI отзывы" run high, because students and parents feel the charge before they trust the math.

We analyzed 1-3 star reviews across five of the most-used AI tutor and homework-help apps of 2026: Gauth, Question AI, Answer AI, Studdy, and Brainly. The goal was to separate the apps that actually help a student learn from the ones that bait a free scan, paywall the solution, auto-charge a weekly subscription, and deliver wrong answers with a straight face. The complaint patterns make the real trade-offs clear, and they are not the trade-offs the 4.7 store ratings or the "solve any problem free" banners suggest.

The 5 Apps Analyzed

Store ratings sit high because students rate the relief of a fast answer the night before a deadline, not the moment they learn the answer was wrong or the weekly charge appeared. The 1-3 star subset captures the failure modes: the confidently wrong solution, the paywalled steps behind a free scan, the auto-renewing weekly subscription, the scanner that misreads the problem, and the refused refund. AI tutor apps are a category where the headline (instant free answers to any problem) is the hook, and the reliability and the price are the parts students and parents discover only after the homework is wrong or the card is charged.

Top Complaints Across All AI Tutor Apps

Percentages are within the 1-3 star review subset.

1. The AI Gives Wrong Answers With Total Confidence (27%)

The single biggest complaint and the most damaging, because the entire value is being correct. Reviewers describe solutions that are plausibly formatted and completely wrong, steps that do not follow, and an AI that never signals uncertainty, so a student turns in a confidently incorrect answer.

• "Got three math problems wrong on a test because the app's answers were confidently incorrect. It does not warn you when it is unsure"
• "The steps look right but the final answer is wrong. For a tool whose only job is to be correct, that is unforgivable"
• "It hallucinated an entire solution method that does not exist. My kid copied it and the teacher flagged it as nonsense"
• "Asked a chemistry question, got an answer stated as fact that was just wrong. No 'I am not sure,' just confident garbage"
• "It is right on easy problems and wrong on exactly the hard ones you actually needed help with"

This is the core limitation of AI tutors meeting the zero-tolerance need for accuracy. The models generate fluent, well-formatted solutions whether or not they are correct, and they rarely express the uncertainty that would tell a student to double-check. The most dangerous pattern reviewers describe is competence on easy problems and failure on hard ones, because it builds trust exactly where the app is least reliable. For a product whose only job is to be right, a confidently wrong answer is not a minor bug, it is a failure of the entire premise, and it is the top reason these apps earn 1-star reviews from students who got marked down.

2. The Weekly Subscription Auto-Charged and Was Hard to Cancel (24%)

The billing complaint. Reviewers describe a free trial that auto-renews into a weekly charge, a price framed to look small, and cancellation buried deep enough that several charges land before they notice.

• "It signed me up for a $12 a WEEK subscription disguised as a free trial. That is over $600 a year for homework answers"
• "The weekly billing is the trap. It looks cheap per week and you forget, then you have been charged a month straight"
• "Tried to cancel and the option was hidden. Got charged twice more before I found it in App Store settings"
• "Free trial that needed a card, auto-renewed instantly, and they refused to refund the charge I never meant to make"
• "My teenager tapped through a trial and I got weekly charges I did not catch for six weeks. Predatory on a student app"

This is the subscription-trap pattern tuned for a young, impulsive audience. The weekly billing cycle is the specific lever: a per-week price looks trivial next to a monthly or annual one, but it compounds fast and is easy to forget, so a forgotten trial becomes a long run of charges. Reviewers single out the mismatch between a one-tap signup and a buried cancellation, and the fact that the target users are often students using a parent's card. The refused refund is what converts the billing surprise into a "scam" search and a 1-star review.

3. The Answer Is Free to See but the Real Solution Is Paywalled (18%)

The bait-and-switch complaint. The scan and a teaser are free, but reviewers find the actual step-by-step solution, the explanation, or the next question locked behind a subscription, so the "free" tool is a demo.

• "It scans for free and shows you the answer exists, then locks the steps behind a paywall. The free part is useless"
• "You get a couple of free questions, then it is pay-to-continue right when you are mid-homework and desperate"
• "Shows the final answer to bait you, hides the working that you actually need to learn. Pure paywall psychology"
• "Free to scan, paywalled to understand. It dangles the solution and charges you at the worst possible moment"
• "The 'free' version answers nothing useful. Every real explanation is Premium"

This is the freemium model exploiting deadline pressure. The free scan demonstrates that the app could help, then gates the part with actual learning value (the steps and explanation) behind a subscription, and the paywall is timed to hit when the student is mid-assignment and most likely to pay. Reviewers resent the psychology specifically: showing the answer to prove value, then withholding the working that justifies the price. A few free questions per day is the gentler version, but the pattern across the category is a free tier built to convert urgency into a subscription rather than to actually help.

4. The Scanner Misreads the Problem and Solves the Wrong Thing (16%)

The input-failure complaint. Optical recognition struggles with handwriting, diagrams, fractions, and graphs, so reviewers describe the app confidently solving a problem that is not the one they photographed.

• "It misread my handwritten equation, changed a 7 to a 1, and solved a completely different problem"
• "Cannot read diagrams or graphs at all. Anything beyond plain typed text and it guesses wrong"
• "Scanned a fraction and it parsed it as division on one line. The whole solution was for the wrong problem"
• "My handwriting is fine and it still garbled the symbols. Had to type everything manually, which defeats the point"
• "Word problems confuse it completely. It picks random numbers out of the text and solves something unrelated"

This is the recognition layer failing before the AI even starts. Homework is full of handwriting, mathematical notation, diagrams, and multi-part word problems, and the OCR step misreads them often enough that the app solves the wrong problem with full confidence. The compounding issue is that a misread plus a confident answer (complaint #1) produces a wrong solution the student has no easy way to catch. When the workaround is to type every problem manually, reviewers note that the "just scan it" promise that sold the app is gone.

5. It Encourages Cheating, and the Privacy and Ads Pile On (15%)

The trust-and-integrity complaint. Parents and teachers object that the apps are answer-machines rather than tutors, while users add complaints about data collection from minors, intrusive ads on the free tier, and aggressive notifications.

• "This is not a tutor, it is a cheating tool. It gives the answer with no learning, and my kid stopped trying to understand"
• "Teachers can spot the AI answers instantly. It got my son flagged for academic dishonesty"
• "An app aimed at students collecting this much data with this vague a privacy policy is a real concern"
• "The free version is wall-to-wall ads between every question, including ads not appropriate for kids"
• "Constant notifications nagging my teenager to subscribe. Predatory design on an education app"

This is the integrity and safety layer the marketing avoids. Framed as tutors, the apps in practice optimize for handing over answers, and reviewers (often parents and teachers) object that this replaces learning rather than supporting it, with detectable AI output creating academic-integrity risk. The privacy concern is sharper because the users are frequently minors, and the free-tier ads and subscription-nag notifications add an extraction layer on top. The apps that draw the most of this complaint are the ones marketed as educational help while behaving like answer vending machines.

App-by-App Verdict

Gauth: The Most Popular, the Weekly-Subscription Lightning Rod

Gauth is among the most-downloaded AI homework apps and covers the widest subject range, which is its strength. The trade the reviews expose is billing: the weekly auto-renew subscription draws the heaviest complaints, alongside the confidently-wrong-answer and paywalled-steps issues common to the category. Best for students who want broad subject coverage and will avoid the weekly trial entirely, frustrating for anyone who taps through the trial or trusts its answers on hard problems without checking.

Question AI: Math-Focused, Steps Behind the Paywall

Question AI leans into math with a scan-and-solve flow and an AI chat, and on straightforward problems it is reasonably useful. The complaints cluster on the paywall (the real steps are locked) and on accuracy degrading as problems get harder. Best for students who need quick math checks and will verify the result, weaker for anyone expecting the free tier to teach the working or the AI to hold up on advanced problems.

Answer AI: Broad Tutor, Standard Subscription Traps

Answer AI markets itself as an all-purpose AI tutor across homework and essays, and the breadth appeals. The reviews show the standard category pattern: confident wrong answers outside simple problems, a subscription that auto-renews, and a free tier that paywalls the useful output. Best for light, general help across subjects with low stakes, frustrating for high-stakes work where accuracy matters and for anyone caught by the trial-to-subscription billing.

Studdy: Newer and Slicker, Same Model and Rougher Edges

Studdy is one of the newer entrants with a polished AI-tutor interface and a conversational style. As a younger app it draws more reliability and bug complaints, plus the same paywall and subscription model as the established players. Best for students who like a chat-style tutor and will treat its answers as a first draft to verify, underwhelming for anyone expecting the newer polish to mean more accuracy or a gentler paywall.

Brainly: Community Plus AI, Ads and Paywall Heavy

Brainly pairs a long-running community Q&A library with AI answers, so popular questions often have a human-verified answer, which is its real edge. The complaints center on the heavy free-tier ads, the paywall on the best content, and AI answers of variable quality mixed in with the community ones. Best for common, frequently-asked homework questions where a verified community answer exists, frustrating for the ad load on the free tier and for AI answers presented with the same confidence as verified ones.

Key Takeaways

• Confident does not mean correct: these apps format wrong answers exactly like right ones and rarely flag uncertainty, so verify every solution, especially on the hard problems where they fail most
• Watch the weekly subscription: the billing cycle is weekly to look cheap and compound fast, the trial auto-renews, and refunds are refused, so cancel through App Store settings and never hand a student an un-supervised trial
• The free scan is a demo: the answer is bait and the steps that actually teach are paywalled, timed to hit mid-assignment, so judge the free tier by whether it explains anything, not by whether it shows an answer
• The scanner misreads more than you think: handwriting, fractions, diagrams, and word problems trip the OCR, and a misread plus a confident answer is a wrong solution you cannot easily catch
• Use them to check, not to learn for you: the apps work best as a second opinion you verify, and the students who get hurt are the ones who copy the output, which is also what gets answers flagged as AI

How to Actually Use an AI Tutor Without Getting Burned in 2026

Based on the review patterns, a realistic approach:

• Verify every answer against your own work: treat the app as a second opinion, never the final word, because confident wrong answers are the number-one complaint and they look identical to correct ones

• Avoid the weekly trial, or cancel it the same day: the weekly auto-renew is the core billing trap, so if you start a trial, cancel it immediately in App Store settings and rely on memory of the date

• Supervise any trial on a student's device: these apps target minors using a parent's card, so set up Screen Time purchase approval rather than trusting a teenager not to tap through a paywall

• Type hard problems instead of scanning them: the OCR misreads handwriting and notation, so for anything important, enter it manually so the app at least solves the right problem

• Judge the free tier by the explanation, not the answer: if the steps and reasoning are paywalled, the free version cannot actually teach, and a tool that hides the working is not worth a subscription

• Use it to understand, not to submit: copied AI answers are detectable and replace learning, so use the steps to work the next problem yourself rather than turning in the output

• Cross-check with a free, trusted source on the hard ones: for the advanced problems where these apps fail, a textbook, a teacher, or a free community answer beats a confident hallucination

Bottom Line

Gauth is the broadest and most popular, undone by the weekly-subscription complaints and the usual accuracy ceiling on hard problems. Question AI is a decent quick math checker if you verify the result and accept the steps are paywalled. Answer AI is fine for low-stakes general help and risky for anything that has to be right. Studdy is the slicker newcomer with the same model and rougher edges. Brainly is strongest when a verified community answer exists, and ad-and-paywall heavy otherwise.

Before you or your student pays for any of them, read the most recent 1-star reviews on Unstar.app for the specific app and look for the "confidently wrong," "weekly charge I never approved," and "steps are paywalled" complaints, because those three patterns decide whether an AI tutor actually helps or just sells fast answers that may be wrong.

The broader truth the reviews expose: AI tutor apps compete on the promise of instant free answers and recover the value through a paywall on the explanation, a weekly subscription tuned to compound, and an AI that is fluent whether or not it is correct. The students who benefit treat these apps as a second opinion to verify, never hand over an un-supervised trial, and use the steps to learn rather than to submit.

Related reading: Photomath vs Socratic vs Chegg: AI Homework Apps Ranked covers the math-solver generation of homework apps and where their reviews land. Quizlet vs Anki vs Brainscape: Flashcard Study Apps Ranked covers the study-tool category where the same paywall complaints dominate. The Worst Rated Apps of 2026 ranks the most-complained-about apps across every category.