It talks you through the questions you got wrong

Finishing your GRE practice test is where the work starts. TestPrep AI Tutor goes through your mistakes with you: it won't just give you the answer, it asks you, writes the steps on the board and lets you find where you went wrong.

On the GRE it works through Quantitative Reasoning and Verbal Reasoning questions. Your Analytical Writing (Analyze an Issue) text is coached against ETS's published scoring guide.

Your first 2 mistakes are free (up to 10 minutes)

No card needed to try it, just your account.

It works on practice tests for:

AI Tutor lesson screen: the wrong and blank questions on the left, a GRE Quantitative question on the height of a triangle in the middle, and the tutor's steps written one under another on the board on the right.
Sample screen

One lesson, start to finish

A mistake is picked on the results page, the tutor asks, the answer comes back, the next step goes up on the board and the question is closed. The video is silent; the conversation is in the captions.

  1. Finish a practice test

    Your results page lists every question you got wrong or left blank.

  2. Open the AI Tutor

    Go in from the AI Tutor card on your results page, then pick the lesson language, how it runs and the tutor's voice.

  3. Talk it through

    The tutor asks, you answer; the steps go up on the board and hints come when you're stuck.

  4. Move on

    Press “Finish this question” once you've got it. Your first 2 mistakes are free; after that you carry on in 30-minute blocks.

Sample screen · TestPrep AI Tutor lesson flow: results page, choosing a question, working it on the board (silent video with captions)

What a lesson has

It starts from one mistake

When the test ends, your English score report shows a TestPrep AI Tutor card with the number of questions you got wrong or left blank. Open it and the lesson starts on those questions; the tutor already has each question, its choices and the answer you gave.

SAT score report: beside the total and section scores, the orange AI Tutor card with the number of wrong answers and the free-trial note.
Sample screen

Out loud, on a board

No typing: you talk. The tutor writes the steps one under another; you can write with the pen too, and it reads your handwritten step. Interrupt whenever you like, or say “got it” and move on.

AI Tutor lesson screen: the wrong and blank questions on the left, a GRE Quantitative question on the height of a triangle in the middle, and the tutor's steps written one under another on the board on the right.
Sample screen

You set the lesson up

Before you start, pick how it runs (step by step together, or the tutor explains), the language it opens in (any of 20) and the tutor's voice. After that it follows whichever language you speak.

AI Tutor start screen: how many questions there are to go over and their topics, the time left, and the choice of lesson mode, language and voice.
Sample screen
SAT · ACT

On the SAT and ACT, the exam's own Desmos

The same calculator you use in the SAT and ACT Math practice tests is on screen. The tutor sees what you type, so it can tell a right method with a mistyped expression from a wrong method.

AI Tutor lesson screen: the exam's own Desmos calculator beside the SAT question, with the two lines the student typed and where they cross; the solution steps on the board.
Sample screen
IELTS · TOEFL · ACT · GRE · PTE

Writing, coached against the rubric

On IELTS, TOEFL, ACT, GRE and PTE you go through your text against the exam's own published scoring criteria: it shows where the score comes from using your sentences, and you make the fixes. It never writes the text for you. On PTE Speaking it works from the transcript of your recording and does not re-score pronunciation; IELTS and TOEFL Speaking are not reviewed.

AI Tutor lesson screen: the wrong and blank questions on the left, the student's IELTS Writing Task 2 answer with its band per criterion and the feedback in the middle, and the tutor's notes on the board on the right.
Sample screen

It won't lead with the answer, and won't withhold it

The tutor climbs a ladder. It starts at the bottom and moves up one rung at a time, never skipping. Ask for the answer and you get it: no haggling, no “try once more first”.

  1. Watches

    If you are working, it stays out of the way.

  2. Try again

    “Have another look at the choices.”

  3. Points the way

    “Read the second sentence again.”

  4. Socratic question

    “Are we solving for x here, or for 2x?”

  5. Targeted hint

    “There's a sign slip: what happens when you move the minus across?”

  6. Shows one step

    Writes only that step on the board; the rest is yours.

  7. Full solution

    Once the guided attempts are genuinely spent.

What it works on, exam by exam

The tutor works in each exam's own sections, under their official names.

ExamQuestions it works throughAlsoPractice tests
SATReading and Writing · MathDesmos calculatorSAT practice tests
GMATQuantitative Reasoning · Verbal Reasoning · Data Insights—GMAT practice tests
GREQuantitative Reasoning · Verbal ReasoningWriting: coached against the rubricGRE practice tests
PTEListening · ReadingWriting: coached against the rubric · Speaking: coached from your recording's transcriptPTE practice tests
IELTSListening · ReadingWriting: coached against the rubricIELTS practice tests
TOEFLReading · ListeningWriting: coached against the rubricTOEFL practice tests
ACTEnglish · Mathematics · Reading · ScienceWriting: coached against the rubric · Desmos calculatorACT practice tests

Every question leaves a short record

When a question closes, the tutor classifies it: which kind of mistake, how far up the ladder it had to go, how many hints, whether you got there in the end and whether you found it yourself. No audio is kept; a written transcript of the lesson and this short record are kept with your account, and deleted when your account is deleted.

Your panel shows these records too: under your exam results, how many questions each type of mistake came up on in each exam, and which questions, each linked to its test's results.

Open your panel
  • concept
  • algebra
  • arithmetic
  • sign
  • distribution
  • formula
  • graph reading
  • misread question
  • units
  • calculator
  • answer-choice trap
  • incomplete reasoning
  • carelessness
  • other

Try it free first

Your first 2 mistakes are free (up to 10 minutes)

No card needed to try it, just your account.

30 minutes of TestPrep AI Tutor

€4

Unused minutes stay on your account and carry into your next practice tests.

See the GRE practice tests
Free-trial-finished panel: how many mistakes were reviewed and corrected, how many are still waiting, and the note that 30 minutes pick up where you left off.
Sample screen · When the free trial ends you see this card: how many mistakes you worked through, how many are still waiting, and the package if you want to carry on.

What it doesn't do

  • It doesn't predict your score or promise a higher one.
  • It works on the practice tests you finish, not on question-bank or homework questions.
  • It doesn't review IELTS or TOEFL Speaking, doesn't re-score PTE pronunciation, and never writes your text or homework for you.
  • It doesn't replace a human teacher; our one-to-one tutoring is a separate service.

Questions people ask

Which exams does the AI Tutor work on?
SAT, GMAT, GRE, PTE, IELTS, TOEFL and ACT practice tests, including the free diagnostic tests. When the test ends, the lesson starts from a question you got wrong or left blank on your results page. On the GRE it works through Quantitative Reasoning and Verbal Reasoning questions. Your Analytical Writing (Analyze an Issue) text is coached against ETS's published scoring guide.
How much is free?
Your first 2 wrong questions are free, once per account, for up to 10 minutes. There is no card to enter to try it; you just need to be signed in.
How is it charged after that?
You buy time in 30-minute blocks, up to 8 blocks (4 hours) in one purchase. The price is shown in the site's currency. Unused minutes stay on your account and carry over to your next practice tests.
Will it just tell me the answer?
Yes, if you ask. It starts by asking you and giving hints, but say “just tell me” and it does. The “Show the answer” button is on screen for every question, except Writing tasks, which have no single right answer.
What language does it teach in?
It opens in the language you pick (any of 20) and then follows whichever language you speak. The question stays in English, as it is on test day.
Do I need a microphone?
The lesson runs on voice, so your browser will ask for the microphone; headphones and a quiet room help. You can mute whenever you like and carry on by writing on the board.
Are lessons recorded?
No audio is kept. A written transcript of the lesson and a short note per question (the type of mistake and how many hints it took) are kept with your account, and deleted when your account is deleted.