
SpecialistOutstanding for context-aware translation and professional writing refinement, but not designed as a dedicated grammar checker.

EchoMark records 8,044 monthly visits with +10.6% month-over-month growth and Freemium, Contact for Pricing pricing. Grammarly records 58,867,412 monthly visits with -1.5% growth and Freemium pricing.

Invisible forensic watermarks that identify who leaked your data
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | echomark.com | grammarly.com |
| Pricing Model | Freemium, Contact for Pricing | Freemium |
| Monthly Visits | 8.04K (8,044) | 58.87M (58,867,412) |
| MoM Traffic Delta |
| +772 (+10.6%) |
| -916.08K (-1.5%) |
| Primary Market & Share | 🇺🇸 United States (100%) | 🇺🇸 United States (51.9%) |
|---|
| Direct Visits / mo | 3.19K | 25.4M |
|---|
| User Rating | 4.3 | 4.4 |
|---|
| Supported Platforms | Website | Website |
|---|

Invisible forensic watermarks that identify who leaked your data
Each recipient's copy of an email, document or image carries a different hidden mark, so a single leaked artifact points to one person.
The Luma image mark is engineered to survive printouts, photocopies, mobile photos and compression, where metadata-based tagging fails.
Marks everything shown on a display, covering any app or file type including browsers, collaboration tools and AI assistants.
Upload a leaked file, screenshot or photo and get back the source recipient with a confidence score and chain-of-custody documentation.

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.

Excels at heavy paraphrasing and text rewriting, but offers less seamless inline real-time proofreading across all apps.
AI content detection and a full writing toolkit in one place
AI 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.
Detect, humanize and verify AI content in one place

Enterprise AI and plagiarism detection for content integrity

AI detector, plagiarism and content-quality checks in one scan

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
SpecialistHighlights readability and sentence complexity visually, but lacks automated grammar correction and browser-wide extension support.

Detect AI-generated text and images with benchmark-tested accuracy
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.
AI content detection and a full writing toolkit in one place
Provides strong multilingual grammar and style checking across apps, but offers fewer advanced generative AI features.
Detect, humanize and verify AI content in one place
AI detector, plagiarism and content-quality checks in one scan
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
SpecialistHighlights readability and sentence complexity visually, but lacks automated grammar correction and browser-wide extension support.
Detect AI-generated text and images with benchmark-tested accuracy