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StealthWriter vs WriteHuman

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Cheaper paid plan
WriteHuman — $12/mo vs $20/mo for StealthWriter
Free plan
Both have one
Public API
WriteHuman has one; not confirmed by us for StealthWriter
Best fit
StealthWriter: Editing model-drafted marketing copy so it reads less mechanically · WriteHuman: Editing machine drafts into prose that sounds less uniform
Platforms
StealthWriter: Web · WriteHuman: Web, Chrome extension, iOS, Android

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

Side by side

FactStealthWriterWriteHuman
CategoryAI Detection & HumanizersAI Detection & Humanizers
Pricing modelFreemiumFreemium
Starts at$20/mo$12/mo
Public APINot confirmedYes
Trust score87 / 10090 / 100
PlatformsWebWeb, Chrome extension, iOS, Android, API
CompanyAiVantage LLCWriteHuman LLC
Launched2023—
Last verifiedOct 15, 2026Oct 15, 2026

What our research says

StealthWriter

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

WriteHuman

As humanizers go this one is unusually transparent about its own scoring, showing per-sentence detection probability instead of a single vague pass mark, and its surface area — extension, mobile apps, API, MCP — is wider than most rivals. The catch is what the tool is for: passing AI-detection checks breaches most academic integrity policies, and no vendor can guarantee any detector's verdict.

Pros

  • Sentence-level detection scores rather than a single opaque verdict
  • Chrome extension, iOS and Android apps, plus a documented API and MCP access
  • Free tier lets you judge output quality before paying
  • Annual billing cuts the effective monthly rate by roughly a third

Cons

  • Request counts and word caps are tight on the lower tiers
  • Detector outcomes are probabilistic and shift as detectors are retrained
  • Use is disallowed by most academic integrity policies

Which one fits

Choose StealthWriter if you need

  • 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

Choose WriteHuman if you need

  • Editing machine drafts into prose that sounds less uniform
  • Non-native writers smoothing generated text across 40-plus languages
  • Developers who want rewriting inside their own pipeline via the API

StealthWriter vs WriteHuman: the questions people ask

Is StealthWriter cheaper than WriteHuman?

On published entry prices, WriteHuman starts lower — $12/mo against $20/mo for StealthWriter. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does StealthWriter or WriteHuman have a free tier?

Both: StealthWriter has a free tier, and WriteHuman has a free tier.

Which has a public API, StealthWriter or WriteHuman?

WriteHuman ships a public API, as of our last verification. A public API for StealthWriter is not confirmed by us — check its developer docs before you plan an integration.

All StealthWriter alternatives →All WriteHuman alternatives →Browse all AI Detection & Humanizers →