adCAPTCHA records 50 monthly visits with -80.2% month-over-month growth and Paid pricing. Grammarly records 58,867,412 monthly visits with -1.5% growth and Freemium pricing.
Privacy-first human verification that swaps annoying puzzles for engaging images and video.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | adcaptcha.com | grammarly.com |
| Pricing Model | Paid | Freemium |
| Monthly Visits | 50 (50) | 58.87M (58,867,412) |
| MoM Traffic Delta | -202 (-80.2%) | -916.08K (-1.5%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (51.9%) |
| Direct Visits / mo | 21 | 25.4M |
| User Rating | 3.8 | 4.4 |
| Supported Platforms | Website | Website |
Privacy-first human verification that swaps annoying puzzles for engaging images and video.
Verify visitors with short image and video interactions instead of text or grid puzzles, using media you upload through the dashboard.
Multiple detection layers run behind a single interaction to catch sophisticated bots without adding friction for genuine users.
Turn the verification moment into a positive touchpoint by featuring your own media, or open the space to advertisers.
Pre-built integrations for popular platforms plus a documented API let teams add human verification to a site or app in minutes.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Works natively inside Chrome, Safari, Firefox, Edge, Windows, Mac, Google Docs, MS Office, and mobile keyboards to flag grammar mistakes, rewrite tangled sentences, and shift tone toward confident, empathetic, or executive registers.
Deploys contextual AI agents that predict how a target audience will react to a draft, locate credible supporting citations, grade essays against rubric criteria, and generate drafts using up to 2,000 monthly prompts on Pro.
Scans text against billions of web pages and academic databases for accidental plagiarism, detects AI-generated passages, and logs transparent document provenance via Authorship reports in Google Docs and Word.
Enables teams on Pro and Enterprise plans to codify company terminology, ban deprecated jargon, enforce inclusive language, insert shared Snippets, and surface internal company definitions inline.
SpecialistOutstanding for context-aware translation and professional writing refinement, but not designed as a dedicated grammar checker.
SpecialistOutstanding for context-aware translation and professional writing refinement, but not designed as a dedicated grammar checker.
Excels at heavy paraphrasing and text rewriting, but offers less seamless inline real-time proofreading across all apps.
Excels at heavy paraphrasing and text rewriting, but offers less seamless inline real-time proofreading across all apps.
Free / Open-sourceAI content detection and a full writing toolkit in one place
Free / Open-sourceAI content detection and a full writing toolkit in one place
Free / Open-sourceAI detection and writing verification built for schools and editors
Free / Open-sourceAI detection and writing verification built for schools and editors
Provides strong multilingual grammar and style checking across apps, but offers fewer advanced generative AI features.
Provides strong multilingual grammar and style checking across apps, but offers fewer advanced generative AI features.
Targeted research audiences with AI-verified data quality
Targeted research audiences with AI-verified data quality
Free / Open-sourceDetect, humanize and verify AI content in one place
Free / Open-sourceDetect, humanize and verify AI content in one place
Enterprise AI and plagiarism detection for content integrity
Delivers deeper manuscript analysis and structural reports, but has a steeper learning curve than Grammarly.
Delivers deeper manuscript analysis and structural reports, but has a steeper learning curve than Grammarly.
SpecialistAI academic writing assistant that edits, cites, and checks your manuscript right where you write
SpecialistAI academic writing assistant that edits, cites, and checks your manuscript right where you write
SpecialistHighlights readability and sentence complexity visually, but lacks automated grammar correction and browser-wide extension support.
SpecialistHighlights readability and sentence complexity visually, but lacks automated grammar correction and browser-wide extension support.
Free / Open-sourceDetect AI-generated text and images with benchmark-tested accuracy
Free / Open-sourceDetect AI-generated text and images with benchmark-tested accuracy
