# CatchGPT vs StealthWriter

CatchGPT records 0 monthly visits with — month-over-month growth and Free pricing. StealthWriter records 2,887,114 monthly visits with +15.5% growth and Freemium pricing.

| Metric | [CatchGPT](https://openaitools.app/tool/catchgpt) | [StealthWriter](https://openaitools.app/tool/stealthwriter) |
| :--- | :--- | :--- |
| Website URL | https://chromewebstore.google.com/detail/catchgpt/kaodldigfljjcdeghjccakdjiehlgbig | https://stealthwriter.ai |
| Categories | AI Content Detector, AI Image Detector, AI Art Detector | Humanizer AI, AI Bypasser, AI Rewriter, AI Content Detector |
| Pricing Model | Free | Freemium |
| Monthly Visits | 0 | 2,887,114 |
| MoM Growth Rate | — | +15.5% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 1,616,124 |
| Review Score | 1.7 | 3.7 |
| Saved Count | 0 | 16 |
| Supported Platforms | Browser Extension | Website |

## CatchGPT

CatchGPT is a browser-based AI content detector distributed as a Chrome extension. Its stated mission is to preserve the value of human-generated knowledge by making it easy to flag text and imagery that appears to have been produced by generative AI. Rather than pasting content into a separate web app, you install the extension and trigger a detection pass directly on the page you are reading.

In day-to-day use it works as a quick triage layer. A single click runs the detector against the current selection or page, returning a simple human-versus-AI signal that a writer, editor, teacher or reviewer can act on. Because it lives in the browser, it fits naturally into existing review workflows such as proofing drafts, moderating submissions or checking marketing copy before publishing.

The extension is published on the Chrome Web Store under the CatchGPT name and carries a small footprint. It is positioned as a free tool with a strong emphasis on distinguishing specialised human knowledge from generic AI-generated text, and it is aimed at anyone who needs a fast sanity check rather than a heavy compliance platform. Note that the separate domain catchgpt.ai now hosts an unrelated product aimed at teachers, so the extension remains the authoritative CatchGPT AI-detector product.

**Pricing & Plans:** Free to install from the Chrome Web Store; no paid tiers are advertised on the extension listing.

- **One-click detection:** Run an AI-content check on the page or text you are viewing with a single click, without leaving your tab.
- **Text and image coverage:** Flags both AI-written text and AI-generated images so you can evaluate mixed-media content in one pass.
- **Signal-versus-noise verdict:** Returns a straightforward human-versus-AI signal designed to be read at a glance rather than as a dense report.
- **Lightweight Chrome extension:** Installs in seconds from the Chrome Web Store and stays out of the way until you need it.
- **Human-knowledge focus:** Built around the goal of preserving the value of human-created content for writers and reviewers.

**Strengths:** One-click workflow keeps detection inside the browser tab you are already reading; Covers both text and images rather than text alone; Free to install with a very small download footprint; Simple human-versus-AI verdict that non-technical users can act on

**Limitations:** Very small user base and few reviews compared with mainstream detectors; Extension has not been updated since 2023, so detection accuracy may lag newer AI models; No detailed scoring, reporting or team features for compliance use cases

[Profile (Markdown)](https://openaitools.app/tool/catchgpt.md)

## StealthWriter

StealthWriter is built around two steps: scan and rewrite. The detector highlights sentences that still read as AI-written, and the humanizer then rewrites the text to smooth those passages out. Because you can run the detector again afterwards, it works as an iterative loop rather than a one-shot button, which makes it more practical for longer articles where only a few paragraphs sound robotic.

The tool targets people who draft with large language models but publish under their own name: bloggers, marketers, copywriters and researchers. Output can be tuned by rewriting level and, at the sentence level, by picking from alternative phrasings. Processing is quick — typically a matter of seconds — and the free tier with 10 daily humanizations and 1,000 words per input is enough to test whether the tone matches your writing style. Paid plans raise both the daily allowance and the maximum input length, which matters if you humanize long-form content regularly.

StealthWriter is a service of AiVantage LLC. On privacy, the company states that text submitted for humanizing or scanning is not stored after processing, not shared with third parties and not used for training. It is best treated as a drafting and polishing assistant: it improves how naturally AI-assisted text reads, but you should still review facts, claims and citations yourself before publishing.

**Pricing & Plans:** Freemium. The free plan costs $0 and includes 10 humanizations and 10 AI scans per day with up to 1,000 words per input. Paid tiers are Starter at $20/month (50/day), Plus at $50/month (150/day), Pro at $100/month (350/day) and Scale at $400/month (2,000/day), each allowing 5,000 words per input, with discounts for annual billing.

- **AI text humanizer:** Rewrites AI-generated drafts with natural phrasing, rhythm and flow, and lets you pick light, medium or aggressive rewriting depending on how much change you want.
- **Built-in AI detector:** Scan text before and after humanizing to see which sentences still look machine-written, with colour-coded sentence-by-sentence highlights.
- **Alternative rewrites per sentence:** Click any sentence to see alternative rewrite options and fine-tune the output until it matches your own voice.
- **Fast batch processing:** Returns humanized text in seconds, with word limits per input ranging from 1,000 words on the free plan up to 5,000 words on paid tiers.
- **Volume-friendly quotas:** Daily allowances scale with your plan, from 10 humanizations a day on the free tier up to 2,000 a day on the Scale plan, for high-volume content workflows.

**Strengths:** Free plan lets you test the humanizer and detector at no cost; Detector and humanizer in one workflow makes quality checking easy; Sentence-level alternative rewrites give fine control over tone; Three rewrite strengths suit different content types

**Limitations:** Monthly quotas are metered per day, so bursty heavy users may hit limits; Humanised text still needs a human read-through for factual accuracy; Result quality varies by language and by how obviously AI-written the source is; No built-in grammar or plagiarism checker beyond the AI detector

[Profile (Markdown)](https://openaitools.app/tool/stealthwriter.md)

## Frequently Asked Questions

### How do CatchGPT and StealthWriter compare in monthly traffic?

CatchGPT has 0 monthly visits, while StealthWriter has 2,887,114. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

CatchGPT has a month-over-month growth rate of —; StealthWriter has +15.5%.

### How does pricing compare?

CatchGPT: Free. Free to install from the Chrome Web Store; no paid tiers are advertised on the extension listing. StealthWriter: Freemium. Freemium. The free plan costs $0 and includes 10 humanizations and 10 AI scans per day with up to 1,000 words per input. Paid tiers are Starter at $20/month (50/day), Plus at $50/month (150/day), Pro at $100/month (350/day) and Scale at $400/month (2,000/day), each allowing 5,000 words per input, with discounts for annual billing.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [DeepL](https://openaitools.app/tool/deepl) | 95,110,871 | -1.7% | Freemium | Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages. | [.md](https://openaitools.app/tool/deepl.md) |
| 2 | [Grammarly](https://openaitools.app/tool/grammarly) | 58,867,412 | -1.5% | Freemium | Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides. | [.md](https://openaitools.app/tool/grammarly.md) |
| 3 | [QuillBot Paraphraser](https://openaitools.app/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | Freemium | Offers versatile paraphrasing and vocabulary adjustment for academic writing, but is not specifically optimized to bypass AI detectors. | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) |
| 4 | [ZeroGPT](https://openaitools.app/tool/zerogpt) | 32,864,541 | +19.7% | Freemium, Paid | Focuses heavily on high-accuracy AI detection while including a humanizer tool, prioritizing detection testing over rewriting. | [.md](https://openaitools.app/tool/zerogpt.md) |
| 5 | [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | +32.5% | Freemium, Paid | Industry-standard AI detection platform relied on by educators, though its text humanization features are secondary. | [.md](https://openaitools.app/tool/gptzero-me.md) |
| 6 | [HumanizeAI.pro](https://openaitools.app/tool/humanizeai-pro) | 9,652,312 | +26% | Free | Delivers quick, conversational text rewriting to bypass AI detection, but lacks dedicated built-in detector testing suites. | [.md](https://openaitools.app/tool/humanizeai-pro.md) |
| 7 | [Undetectable AI](https://openaitools.app/tool/undetectable-ai) | 3,113,403 | +17.5% | Freemium | Provides robust multi-detector testing alongside humanization, but often operates on stricter usage limits than StealthWriter. | [.md](https://openaitools.app/tool/undetectable-ai.md) |
| 8 | [Copyleaks](https://openaitools.app/tool/copyleaks) | 2,402,494 | -14.1% | Paid, Contact for Pricing | Enterprise AI and plagiarism detection for content integrity | [.md](https://openaitools.app/tool/copyleaks.md) |
| 9 | [AI Humanize](https://openaitools.app/tool/ai-humanize) | 2,152,089 | +8.1% | Freemium, Paid | Converts machine-written prose into natural-sounding text efficiently, though with fewer customization options for writing style. | [.md](https://openaitools.app/tool/ai-humanize.md) |
| 10 | [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | +2.8% | Paid | Rigorous content integrity and AI detection checker designed for publishers, but lacks direct text humanization tools. | [.md](https://openaitools.app/tool/originality.md) |

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Source: https://openaitools.app/compare/catchgpt-vs-stealthwriter

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