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

Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. Repl AI records 3,987 monthly visits with -63.8% growth and Freemium, Paid pricing.

AI email drafts that sound like you wrote them
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | grammarly.com | replai.so |
| Pricing Model | Freemium | Freemium, Paid |
| Monthly Visits | 58.87M (58,867,412) | 3.99K (3,987) |
| MoM Traffic Delta |
| -916.08K (-1.5%) |
| -7.01K (-63.8%) |
| Primary Market & Share | 🇺🇸 United States (51.9%) | 🇮🇳 India (44.3%) |
|---|
| Direct Visits / mo | 25.4M | 1.56K |
|---|
| 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 drafts that sound like you wrote them
Share examples of emails you have written and Replai scores and profiles your tone, typical reply length, favorite phrases, and sign-off so future drafts match.
Connect Gmail or Outlook and incoming messages are automatically labeled Priority, Needs Reply, FYI, or Unsubscribe so the noise does not reach you.
Paste a received email or type a few bullet points and get a finished reply or full email written in your own voice.
Record a call and Replai transcribes it, tracks who said what, and hands back a clean summary you can share.

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.

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.
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.

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

Offers similar inline grammar correction and snippets, but with a smaller ecosystem of browser extensions and integrations.

Auto-reply bot for WhatsApp, Telegram, Instagram and more

Provides exceptional clarity and style rewrites for professional text, but lacks broader plagiarism checking and citation tools.

An AI writing assistant and keyboard for error-free writing anywhere
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.
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.
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.
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
Offers similar inline grammar correction and snippets, but with a smaller ecosystem of browser extensions and integrations.
Auto-reply bot for WhatsApp, Telegram, Instagram and more
Provides exceptional clarity and style rewrites for professional text, but lacks broader plagiarism checking and citation tools.
An AI writing assistant and keyboard for error-free writing anywhere