An AI text "humanizer" rewriting tool: rewrites AI-written content into text that gets past detectors like Turnitin and GPTZero; also offers an AI essay writer, a detector, watermark removal, a Chrome extension, snap-a-photo answers and more.
In February 202One-line growth story, compiled by us from public sources; speculation is marked separately below.
Checkout: checkout.stripe.com
New-user source: Viral (Built-in sharing). Organic search 43.5%, direct 42.4%, with brand keywords at 68.5% (stealthgpt, stealth gpt); classified as group-invite spread: Pro and above can pull classmates and colleagues into a team to use it free. Non-brand search is about 17%, with terms like stealth writer, undetectable ai, claude watermark detector. Paid search 8.5%, plus an affiliate program; social comes from Reddit, YouTube and X. Returning users come back directly.
Top channel measured by Similarweb, others estimated by rank
| Attributable new users, last month | Share |
|---|---|
| SEO | 17% |
| 68% | |
| Other | 14% |
Direct + brand search 68%. Direct and brand search count as viral only when the site shows sharing mechanics; the largest share wins, under 5% means Other.
| Country | Share of visits |
|---|---|
| United States | 42.48% |
| Nigeria | 7.03% |
| India | 5.16% |
| Canada | 3.56% |
| Philippines | 3.08% |
Multilingual, mostly English, plus Chinese/Spanish/Portuguese/French/German/Dutch/Russian/Hindi
Reddit, YouTube, X (Twitter)
1K keywords · brand ~68% · organic 93.16% / paid 6.84%
| Similarweb top 5 keywords |
|---|
| stealthgpt |
| stealth gpt |
| stealth writer |
| claude watermark detector |
| undetectable ai |
Non-brand queries: claude watermark detector, undetectable ai
| Category | Share of referrals |
|---|---|
| Computers Electronics and Technology - Other | 35.21% |
| Digital Marketing | 3.97% |
About 8,596 last month (Similarweb estimate), #462 of 606; the month before was 9,010. Opening checkout is not paying, so this is not revenue.
New-user source: Viral (Built-in sharing). The site has invite or share mechanics, and direct plus brand search is the largest source Organic search 43.5%, direct 42.4%, with brand keywords at 68.5% (stealthgpt, stealth gpt); classified as group-invite spread: Pro and above can pull classmates and colleagues into a team to use it free. Non-brand search is about 17%, with terms like stealth writer, undetectable ai, claude watermark detector. Paid search 8.5%, plus an affiliate program; social comes from Reddit, YouTube and X. Returning users come back directly.
New users get a 3-day trial for $1; first month $0.99 for students; subscription afterward, regular price not found
Dossier confidence: high. Parts 1 and 2 come from reading the site and Similarweb data; part 3 from public reporting, founder posts, Wayback snapshots, WHOIS and similar, with speculation marked.
The number: checkout visits is Similarweb's estimate of visits from the site to a checkout payment page; opening checkout is not paying, so this is not revenue. Small sites land on fixed buckets.
Data through last month. Page updated 2026-10-26.
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