Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. InterSub records 71,644 monthly visits with -11.2% growth and Freemium, Free Trial pricing.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Learn languages with dual subtitles and a hover dictionary in any video
| Dimension / Metric | | |
|---|---|---|
| Official Domain | grammarly.com | intersub.cc |
| Pricing Model | Freemium | Freemium, Free Trial |
| Monthly Visits | 58.87M (58,867,412) | 71.64K (71,644) |
| MoM Traffic Delta | -916.08K (-1.5%) | -9.04K (-11.2%) |
| Primary Market & Share | 🇺🇸 United States (51.9%) | 🇺🇸 United States (15.2%) |
| Direct Visits / mo | 25.4M | 31.96K |
| User Rating | 4.4 | 4.2 |
| 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.
Learn languages with dual subtitles and a hover dictionary in any video
Watch with the subtitle of the language you are learning and your native language stacked, one line above the other, directly inside the video player.
Hover any subtitle word and the video pauses while a pop-up shows an AI-generated definition plus a translation of the surrounding context.
Every word you look up lands in your Wordbook with its original context, so you build a personal list from scenes you actually watched.
If an episode has no subtitles in your language, InterSub translates them on the fly with AI and shows the translation as the second line.
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.
Bilingual AI translation for websites, documents, video and images
Bilingual AI translation for websites, documents, video and images
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
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.
An AI language learning assistant with bilingual subtitles, immersive translation, and vocabulary practice
An AI language learning assistant with bilingual subtitles, immersive translation, and vocabulary practice
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.
