Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. Letty records 198 monthly visits with -85.4% growth and Freemium pricing.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
AI email writing and smart replies, right inside Gmail
| Dimension / Metric | | |
|---|---|---|
| Official Domain | grammarly.com | useletty.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 58.87M (58,867,412) | 198 (198) |
| MoM Traffic Delta | -916.08K (-1.5%) | -1.16K (-85.4%) |
| Primary Market & Share | 🇺🇸 United States (51.9%) | 🇮🇳 India (100%) |
| Direct Visits / mo | 25.4M | 77 |
| User Rating | 4.4 | 3.8 |
| 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.
AI email writing and smart replies, right inside Gmail
Letty reads the incoming thread and proposes replies that fit the conversation, helping you clear your inbox without writing every response from scratch.
Turn a rough idea into a finished message. Letty drafts professional emails for pitches, follow-ups, introductions, and everyday correspondence.
Attach documents, FAQs, or a website URL and Letty draws on that material to answer questions accurately in your replies.
Letty can mirror your tone and phrasing so outgoing mail sounds like you rather than a generic template.
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.
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.
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.
Smart, focused email with AI help — for individuals and teams
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.
AI writing assistant with autocomplete, research, and a Chrome extension
AI writing assistant with autocomplete, research, and a Chrome extension
Offers similar inline grammar correction and snippets, but with a smaller ecosystem of browser extensions and integrations.
Offers similar inline grammar correction and snippets, but with a smaller ecosystem of browser extensions and integrations.
Turn a few key points into polished, on-tone emails
Turn a few key points into polished, on-tone emails
Provides exceptional clarity and style rewrites for professional text, but lacks broader plagiarism checking and citation tools.
Provides exceptional clarity and style rewrites for professional text, but lacks broader plagiarism checking and citation tools.
