Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. uPass AI records 10,419 monthly visits with -60.8% growth and Freemium pricing.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
An undetectable AI humanizer with a built-in multi-detector checker
| Dimension / Metric | | |
|---|---|---|
| Official Domain | grammarly.com | upass.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 58.87M (58,867,412) | 10.42K (10,419) |
| MoM Traffic Delta | -916.08K (-1.5%) | -16.15K (-60.8%) |
| Primary Market & Share | 🇺🇸 United States (51.9%) | 🇺🇸 United States (39.9%) |
| Direct Visits / mo | 25.4M | 4.19K |
| User Rating | 4.4 | 3.6 |
| Supported Platforms | Website | Website |
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.
An undetectable AI humanizer with a built-in multi-detector checker
Paste AI-written text and uPass rewrites it with vocabulary and sentence structures that read like a person wrote it, rather than simple synonym swapping.
Check a passage against several popular detectors in a single run instead of submitting it to each service separately, and see where your text stands.
Select Basic, Advanced or Aggressive depending on how much restructuring the text needs while keeping the meaning intact.
The rewriter generates varied phrasing designed to keep output free of matches flagged by plagiarism checkers as well as AI detectors.
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 browser AI humanizer that rewrites AI text to read naturally
Free browser AI humanizer that rewrites AI text to read naturally
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.
Detect, humanize and verify AI content in one place
Detect, humanize and verify AI content in one place
Humanize AI text and check how human it reads
Humanize AI text and check how human it reads
Turn AI-generated text into natural, human-sounding writing
Turn AI-generated text into natural, human-sounding writing
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.
Humanize AI text and check it against major AI detectors
Humanize AI text and check it against major AI detectors
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.
Great for sentence-level tone adjustments and rewriting, but less comprehensive for standalone grammar rules and style guides.
Great for sentence-level tone adjustments and rewriting, but less comprehensive for standalone grammar rules and style guides.
