Trustpilot and Reddit

Undetectable AI reviews: what users are saying

A look at the parts users call out most: trial charges, refund trouble, rough rewrites, and results that still get flagged.

Trial charge complaints
Refund friction
Detector misses
Output quality concerns

Reviews worth reading

What users are saying

Use search to jump into themes like billing, refunds, support, or detector results. Each card opens the original review or thread.

9 of 9 reviews shown

Trustpilot2/5
Apr 2026

Detector result complaint

"it indeed was detected thru a scanner"

The promise did not match the scan result for this reviewer.

They tried the tool for detection, then saw the text get flagged anyway.

ash / Trustpilot review

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Trustpilot1/5
May 2026

Annual billing complaint

"charged me near instantly for the FULL YEAR PLAN"

This reviewer says a trial turned into a full-year charge almost immediately.

The follow-up concern was refund timing and support response.

Ben Dowsley / Trustpilot review

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Trustpilot1/5
May 2026

Post-cancellation billing complaint

"cancelled my subscription and was then billed"

Another one-star review says cancellation did not stop billing.

The review also takes aim at the quality of the rewritten text.

Mo / Trustpilot review

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Trustpilot1/5
Apr 2026

Support no-reply complaint

"never got a reply"

A one-star reviewer says they contacted support right after paying and heard nothing back.

The review also says the user deleted the account and blocked their card to avoid another charge.

T.T / Trustpilot review

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Trustpilot1/5
May 2026

Refund refusal complaint

"did not allow a refund"

A reviewer says they asked for a refund after an unwanted charge and were refused at first.

This adds another billing-and-refund card to the pattern readers are likely checking.

Romin / Trustpilot review

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Trustpilot1/5
May 2026

Trial trap complaint

"traps you to bill you"

A short one-star review says the trial framing felt misleading.

It is brief, but it matches the larger cluster of trial and annual-plan complaints.

client / Trustpilot review

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Trustpilot1/5
May 2026

Crash and refund complaint

"everything was extremely slow and kept crashing"

A reviewer says the site was slow, crashed, and refund help did not arrive.

Undetectable AI replied asking for account information, so the original is worth reading in full.

Churchill Physiotherapy Clinic / Trustpilot review

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Trustpilot1/5
May 2026

Money taken after cancellation

"kept taking money from my account"

A one-star reviewer says cancellation did not stop further charges.

The company replied asking for account details, but the complaint itself is direct.

Kwadwo Oti Agyare / Trustpilot review

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RedditNegative
Oct 2024

Detector comparison complaint

"failed ZeroGPT, Sapling, and even its own detector"

A Reddit test found mixed results across major detectors.

That is the recurring risk with these tools: one checker may pass while another flags it.

r/WritingWithAI post / Reddit discussion

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Sources

Read the originals.

Each review card links to the Trustpilot review or Reddit thread it came from. Open the source when you want replies, edits, removals, or the full conversation.

Quick answers

FAQ

What do negative Undetectable AI reviews talk about most?

Trial billing, refund trouble, cancellation issues, and text that still gets flagged by AI detectors.

Why are there support praise notes on the Trustpilot page?

The Trustpilot profile is mixed. Some reviewers praise support, while lower-rated reviews usually focus on billing, cancellation, and detector misses.

Are the review links direct?

Yes. Each Trustpilot card links to a specific Trustpilot review page, and the Reddit card links to the discussion thread.

Should I read the original replies?

Yes. Some complaints have company replies, so the original Trustpilot pages are useful for seeing the full back-and-forth.