The Best TOEFL AI Feedback Tools, Ranked by Depth

In short: FluentPrep, PrepEx AI, and TOEFLAIR all flag the specific sentence. TOEFLAIR is the only one of the five where we found the redo saved and graded against your original attempt, and only on Listen and Repeat. ETS TOEFL TestReady documents dimension-level scoring and no targeted redo. LingoLeap now describes its feedback as sentence-level and still documents no redo, but we have not run it. We ran FluentPrep’s Email Writing and an Interview on 2026-10-23 and PrepEx AI on 2026-09-25. We re-read LingoLeap’s and TestReady’s own sites on 2026-10-23, without running either product.

Updated October 23, 2026: We re-checked all four competitors. FluentPrep still marks the exact sentence; what we had missed is that its Email Writing retries are saved as scored attempts in a History view, though each retry is a fresh draft with no link to the flagged issue. Its Interview “Re-answer this question” button is still there and still not saved, and its free practice still opens without an account. Its prices are unchanged. PrepEx AI is unchanged since our 2026-09-25 run. LingoLeap changed most: it now covers 12 task types, lists a score per criterion, and calls its feedback sentence-level. TestReady’s quoted wording moved to ETS’s EU page, and its free tier turned out to be larger than we had written.

Nine TOEFL AI tools claim to give you feedback. We read what each one’s own website actually says, rather than what a search snippet or a “best of” listicle claims on their behalf, and most of them stop at naming the weak rubric category.

Then we signed up for two and used them. FluentPrep marks errors sentence by sentence, inside the text you submitted — something its own marketing pages never say. PrepEx AI turned out to do the same on writing, and to coach each speaking answer inside its report. The question this post originally asked, “who gets down to the sentence,” turned out to be the wrong question.

The question that still separates these tools comes one step later. You have been shown the sentence; you redo it. Does that redo get saved and scored against your original, or does it evaporate when you close the tab?

What “Feedback Depth” Actually Means

Three levels of AI feedback exist, and most tools stop at the first or second.

If you want context on how the 2026 reform changed what gets scored, the breakdown of the new 1–6 band system is worth reading first.

How We Checked This

We read each tool’s pricing page, feature pages, and any page carrying an ETS-related claim. Where a claim couldn’t be found on the vendor’s own site, we marked it unverified rather than repeating it. That’s why some numbers below differ from what these tools’ own marketing pages claim about competitors.

Two of the five we also used. Two we only read. Here is when each was last checked, and how.

The first two entries changed substantially once we used the product, and that is the caveat to carry into the other two. “Not documented” below means we could not find it on the vendor’s site — not that we opened the product and confirmed it was missing.

Reading the sites again in October moved both of those entries too. LingoLeap’s own pages now say more than they did in July, and one of ETS’s TestReady links no longer lands on the page it used to.

We held ourselves to the same bar. Toeflair’s own “issue-level repractice” claim only checked out for one of our four task types once we read the code instead of the marketing copy. That’s reflected in our own entry below, not smoothed over.

1. TOEFLAIR

Feedback depth: Tracked repractice on Listen and Repeat (dimension-level on the rest)

TOEFLAIR covers all four core TOEFL task types: Listen and Repeat (sentence shadowing), Interview Practice (timed spoken responses), Email Writing (formal and informal email scenarios), and Academic Discussion (professor-prompt responses). Every response is scored against the ETS 2026 rubric with a full dimension breakdown, not just a total.

On Listen and Repeat, every miss is first classified by cause:

• Listening: you never caught the word, or added one that wasn’t there
• Pronunciation: you caught it but couldn’t pronounce it
• Expression: the words were right, but the phrase broke or went flat

You then say the sentence again — the recording is the whole sentence, not a clip of the flagged words. What narrows to the single issue is everything after it: the attempt is saved to that issue’s own history and graded against your original as STILL, IMPROVED, or FIXED, and the rest of your answer is left alone instead of quietly re-scored.

That last part is what nothing else here does. Being shown the bad sentence is now common; keeping a record of whether your fix actually landed is not.

Interview, Email Writing, and Academic Discussion give you the same rubric-level detail — every dimension scored, every response annotated — but repracticing a single flagged issue there isn’t shipped yet. We’re not going to claim otherwise to make the ranking look cleaner.

Pricing is public: the free plan gives 5–6 practice sets per practice type with full AI feedback and 2 Listen and Repeat repractices per session. The Pro plan is $17/month on a 3-month one-time payment ($51 total), no auto-renewal.

Best for: Students who want to drill exactly what’s holding their Listen and Repeat score back, and full dimension-level detail on everything else.

2. FluentPrep

Feedback depth: Issue-level, redo not tied to the issue

FluentPrep covers 12 item types across all four TOEFL sections, including the same four Toeflair focuses on. Every response gets scored 0–5 on each dimension, plus a full transcript. The free tier is one full mock test plus a daily allowance per item type: on 2026-10-23 it ran from 1 free Email, Academic Discussion and Interview up to 5 free Build a Sentence items. It needs no account: on 2026-10-23 we opened the Speaking practice page in a browser with no account, and it read “You’re practicing without an account. Sign in to keep your scores.” with Interview showing “1 free today.” Without an account your scores aren’t kept.

On 2026-10-23 we submitted a 130-word Write an Email response with four planted grammar errors and one requirement deliberately skipped. (The August run used a 112-word email built the same way.) What came back:

• a 4 / 5 overall and four 0–5 dimension scores, each with a one-sentence reason
• a “What the prompt asked for” check: two requirements marked covered, the skipped one marked missing
• corrections rendered inline into the sentences we had written, as five numbered marks. All four planted errors were caught, each with a category, a severity label and a one-line reason. The fifth mark sits where the missing requirement belongs, and it writes the sentence in for you

That is the entry our July pass got wrong. FluentPrep’s own blog described the feedback as “general category feedback, not sentence-level analysis” — a page since rewritten, and a description the product no longer matches. Reading the site was not the same as using it.

Where it stops is the link between a redo and the mistake. “Try again” opens a blank draft of the same prompt, and a History view keeps every attempt with its own score. We rewrote the email with all five fixes and got 5 / 5. That second report never mentions the first attempt or its marks, and nothing marks the fixed sentences as fixed. Speaking is looser still. Listen and Repeat lets you start from a sentence you pick, and the setup screen says plainly that such a run “is not saved or counted in your progress.” Interview works the same way. On 2026-10-23 we answered Interview 29 (four questions) and got 3.3 / 5. The report ends each question with a “Re-answer this question” button and a note under it: “Targeted practice. It updates this result on screen but is not saved.” The “Next time” card on the same report is linked to a rubric dimension (ours said “Answers the question”), not to a redo. You can fix the sentence; the tool won’t grade the fix against the mistake.

Pricing: free tier as above, or Pro at $19.99/month, or $41.98 for 90 days (about $13.99/month). Pro practice is unlimited, subject to fair-use limits.

Best for: Students who want sentence-level correction across every 2026 task type, and the largest free daily allowance, without needing the redo graded against the mistake.

3. PrepEx AI

Feedback depth: Issue-level, practice not saved

PrepEx AI covers all four TOEFL sections. The same account also covers four other English tests (IELTS, PTE, CELPIP, and the Duolingo English Test). Its site states 75,000+ students across 86 countries, and its TOEFL pricing page lists 3,500+ questions. Its AI coach, Petra, runs through every report.

We ran all four task types on its free plan on 2026-09-25. What came back:

• Email Writing and Academic Discussion: sentence-level corrections, each with our wording, a suggested revision, and the reason
• Listen and Repeat: a 1–6 score per sentence, with the original wording beside what the recognizer heard
• Take an Interview: written fixes quoted from each answer, and a coaching lesson per question with three example rewrites

Where it stops is the record. Every report lets you retry a sentence, an answer, or a draft, but the retry is practice only and gets no new score. Our Listen and Repeat try was gone once we reopened the result. A new graded result means a new full attempt.

Pricing is public: a free tier of 3 practices a day, then $39.99/month or $89.99 every 3 months, renewing automatically.

Best for: Students who want sentence-level writing corrections and coaching on every speaking answer, in one account that spans TOEFL sections and other English tests, and who don’t need a saved record of each retry.

4. LingoLeap

Feedback depth: Sentence-level by its own account, not run

LingoLeap is a dual TOEFL/IELTS product covering all 12 official 2026 task types (we counted ten in July), including the four Toeflair also covers. Its homepage now calls the feedback “sentence-level.” Spec pages it published in September list a 0–5 score for each writing criterion, with quoted extracts from your own answer, a suggested rewrite, and an explanation.

That is the vendor describing its own report. We have not run it, so we can’t say whether it matches FluentPrep’s inline corrections. We keep it below the three tools we have run until we can check.

Two details from July no longer hold. Each question’s final score is still a single 0–5 number, but the criterion scores are no longer only in the written feedback. And the criteria names differ from page to page, so we no longer list them. The newest spec page gives Email Writing and Academic Discussion four each, while an older FAQ on the same site still says three for Academic Discussion.

Nothing on the site documents a targeted redo. We searched the pricing, feature, rubric and spec pages on 2026-10-23: pages checked, product not run.

Pricing runs on a subscription-plus-credits model: $20/month (Plus) or $49/month (Premium) on the 30-day plan. The 3-month bundle works out to about $16.60 and $41 a month. AI evaluations are metered by credits per attempt: 200 for a writing evaluation, 100 for Listen and Repeat. Its pricing page now says “Trusted by 200,000+ Members,” up from “10k+” in July. That is the vendor’s own count, so we cite it as self-reported.

Best for: Students prepping for both TOEFL and IELTS who want one tool covering every 2026 task type.

5. ETS TOEFL TestReady

Feedback depth: Dimension-level

TestReady is ETS’s own official practice platform — not a third party. What separates it from everything else on this list: its pages state plainly that “all feedback, recommendations, personalized insights and tips are developed by the same teams that write and produce the TOEFL iBT test.” Separately, ETS’s Official TOEFL iBT Prep Course gives Speaking and Writing score ranges “using the same automated scoring as in the actual TOEFL iBT test.” TestReady’s free practice test says only “AI-powered automated scoring.” No third-party tool here can make either claim.

Even so, TestReady’s materials describe feedback at the “question/task type and feature level” (ETS’s 2024 launch announcement). The current product page lists writing (grammar, usage, mechanics) and speaking (speech rate, rhythm, pronunciation), plus a full transcript and example responses. We found no mention anywhere on ETS’s site of pinpointing one sentence for a targeted redo. On the evidence its own pages give, the organization that writes the exam stops at dimension-level.

We read ETS’s pages on 2026-10-23: pages checked, product not run. The TestReady portal itself was under maintenance that day. The US page we linked in July now redirects to a general prep-store page, so we link ETS’s EU page, where the wording above still appears.

Pricing: the free tier is larger than we first wrote. ETS lists a full-length practice test with AI-powered scoring and Speaking and Writing feedback, a daily activity, a five-question study plan, and free samplers of Section Tests and Section Practice, all behind a free account. ETS doesn’t publish the paid tier’s price on the TestReady pages.

Best for: Students who want practice content and feedback developed by the same teams that write the real test.

How to Choose

Weak section is Listen and Repeat specifically, and you want a record of whether your fix landed? That’s the one thing we didn’t find anywhere else here: you say the sentence again, and that attempt is saved against the flagged issue and graded against your original.

Deciding between TOEFL and IELTS prep, or need both? LingoLeap’s dual coverage is the only one of these five built for that from the ground up.

Want sentence-level writing corrections and coaching on every speaking answer, with the option to prep for other English tests in the same account? PrepEx AI covers five tests, and each report comes with its own ungraded practice space.

Want sentence-level correction without paying? FluentPrep marks errors inline across every 2026 task type, and its free tier includes a full mock test plus a daily allowance in every item type.

Care most about who built the feedback — not the UI, not the question count, just “was this written by the people who make the exam”? TestReady is the only tool here that can say yes, because it’s ETS’s own product. Whether the scoring is the same as the real exam’s is a different question: ETS says that only of its separate, paid Prep Course, and the free TestReady practice test says only “AI-powered automated scoring.”

Still building skills across Listen and Repeat, Interview, and both writing tasks? Dimension-level feedback tells you where to focus, issue-level tells you what to fix, and tracking tells you whether you fixed it. How AI actually grades TOEFL speaking walks through what these scoring engines are measuring before you pick a tool.

Quick Comparison

FluentPrep’s and PrepEx AI’s rows come from running the product. The LingoLeap and TestReady rows come from reading the vendors’ pages, which is a weaker claim. LingoLeap’s depth cell is its own description of its report, and the “not documented” cells mean we found nothing, not that we confirmed it is missing.

Start with the Free Plan

Not sure which tool fits your prep? TOEFLAIR’s free plan gives you 5–6 practice sets per practice type with full AI feedback — no payment required. You can see how dimension-level scoring works, and run a tracked repractice on Listen and Repeat, before committing to anything.

Sign up free at toeflair.com and run one speaking task. The feedback report will tell you more about your current level than a month of unscored practice.

Further reading

• ETS TOEFL TestReady — official product page
• What changed in the TOEFL 2026 reform
• How AI actually grades TOEFL Speaking