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Launched 2023 · Verified Oct 15, 2026

StealthWriter

Verified Oct 15, 2026 Active
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Rewrites AI-written text to read as human and scores it against detectors in the same pass

ai humanizerai detectortext rewritingdetection evasionFreemium · from $20/mo

Listed on EffectHub ·

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Screenshot of the StealthWriter website
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stealthwriter.ai as we captured it — our own screenshot, not the vendor’s press image.

Pricing

Pricing model
Freemium
Paid options from
$20/mo
Billing
Monthly

Free gives 10 rewrites and 10 detector scans a day, capped at 1,000 words per input. Starter is $20/month (50/day), Plus $50 (150/day), Pro $100 (350/day), Business $200 (800/day) and Scale $400 (2,000/day), all with 5,000 words per input; yearly billing saves about 17% (Starter $200/year), and Enterprise volume is quoted.

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Overview

About StealthWriter

StealthWriter takes text produced by a language model and rewrites it so detection tools stop flagging it, with a built-in detector that scores the draft before and after so you can see whether the pass actually worked. Plans are metered on two axes: how many rewrites you get per day, and how long a single input can be — the free tier caps input at 1,000 words while every paid tier lifts that to 5,000 and raises the daily count. It is operated by AiVantage LLC, a US company with a Wyoming support line, and its changelog was current as of August 2026. The obvious caveat applies: detector evasion is a moving target, and anywhere with an academic-integrity policy treats this as a violation.

Platforms
Web
API
Not confirmed
Last verified
Oct 15, 2026

Verified sources

  • Pricing page: Free $0 (10/day, 1,000 words), Starter $20/mo, Plus $50, Pro $100, Business $200, Scale $400, Enterprise custom; yearly saves 17%; prices in USD (15 October 2026)stealthwriter.ai ↗
  • Homepage FAQ lists yearly prices (Starter $200/year to Scale $4,000/year) and the footer reads 'StealthWriter, a service of AiVantage LLC' with a Mountain Time support line (15 October 2026)stealthwriter.ai ↗
  • Changelog's latest entry is dated August 17, 2026 (15 October 2026)stealthwriter.ai ↗
Fact check

Is StealthWriter legit?

We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.

Domain registered
Mar 2, 2023 (3 years ago)Registry record (RDAP), registrar NameCheap, Inc., looked up Sep 11, 2026
TLS certificate
Issued by Let's Encrypt, valid until Nov 14, 2026Seen in our own connection to the site on Oct 15, 2026
Last checked
Oct 15, 2026The site answered
On the market since
2023The vendor's own material, read by us
Operated by
AiVantage LLC, United StatesOur research, card verified Oct 15, 2026

How we collect these records

Editorial verdict

Pros & cons of StealthWriter

medium confidence

Pairing the rewriter with its own detector in one screen is the sensible design choice here — you can see the before and after score instead of pasting into a third tool to find out. The tiering is honest about what you are buying: daily rewrite count and input length, nothing hidden. Everything else about this category applies, though: detector scores are not a guarantee, the rewrite flattens voice and sometimes meaning, and using it on assessed work is a disciplinary matter regardless of what the score says.

Pros

  • Built-in detector scores text before and after the rewrite in the same interface
  • Free tier is a standing 10 rewrites a day, not a one-off trial
  • Every paid tier raises input length to 5,000 words, so tiers differ only by volume
  • Named US operator with published phone and email support hours
  • Changelog actively maintained, indicating ongoing development

Cons

  • Detector evasion degrades as detectors update — today's score is not a durable result
  • Rewriting flattens voice and can quietly alter facts or technical terms
  • $400/month top tier is steep for a single-function tool, and there is no API to justify it
  • Free tier's 1,000-word input cap excludes most real articles

Best for

  • Editing model-drafted marketing copy so it reads less mechanically
  • Checking a draft's detector score before it goes to a client who screens for AI text
  • Non-native writers polishing model-assisted drafts for tone

Not for

  • Coursework, theses or anything under an academic-integrity policy
  • Technical or legal text where a rewrite that changes a term changes the meaning

Watch out: A passing score from this tool's own detector says nothing about what Turnitin, GPTZero or a marker's judgement will conclude — using it on assessed work is an integrity violation whatever the number says.

StealthWriter head-to-head

Side-by-side fact sheets against the competitors our research or their makers name — pricing, platforms, API and both verdicts on one page.

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