Grammarly
AI Writing Verified May 2026
AI writing assistant that checks grammar, spelling, clarity, tone, and style in real time across browsers, documents, email, and desktop apps.
- Works everywhere — browser extension, Google Docs, Microsoft Word, Outlook, Slack, and native desktop apps
- Real-time tone analysis shows how your writing sounds to the reader before you send
- Full-sentence rewrites suggest cleaner alternatives to awkward phrasing, not just word-level corrections
- Business plan allows custom style guides ensuring everyone on the team writes consistently
How Grammarly scored 59/100
6 weighted criteria, each scored out of 10 and published with its reasoning. Featured placements never move a score.
Deal Strength
3.0 /10This is affiliate access to Grammarly's normal pricing, with no verified discount and no saving attached, so the link changes nothing about what you pay.
Value for Money
5.0 /10Grammarly runs $12-30/mo against ProWritingAid at $10-20/mo, LanguageTool at $20/mo and ChatGPT at $20/mo, so Premium sits at the category norm. The free tier covers the basics if you do not need the AI features.
Capability
8.0 /10Cross-app coverage is the standout, backed by strong grammar accuracy and tone detection, with the AI generator the weakest part. Proofreading, rewriting, plagiarism checks, AI drafting and brand voice on Business are all here, though Premium limits AI to 100 prompts/month.
Time to Value
8.0 /10Onboarding is zero-friction: install the extensions and apps, log in once, and Grammarly runs everywhere you write. You will see corrections within hours, with nothing to configure.
Trust & Reliability
8.0 /10Grammarly says it is trusted by 50,000 organizations and 40 million people, with major company logos to match, and its cross-app coverage is long established. It publishes no uptime or SLA figure.
Flexibility & Exit
5.0 /10Annual and monthly options both exist, though paying monthly direct is closer to $30. Cancellation and data-export policies are not published, so assume standard subscription terms.
About Grammarly
Quick answer
AI writing assistant that checks grammar, spelling, clarity, tone, and style in real time across browsers, documents, email, and desktop apps.
Grammarly, in 30 seconds
Grammarly is the proofreading and writing assistant that runs as a browser extension, desktop overlay and mobile keyboard — anywhere you type. The 2024-25 product expansion bolted a generative AI assistant on top, so it now handles drafting, rewriting and tone shifts alongside the original grammar engine.
How it actually works
Install the extensions and apps, log in once, and Grammarly runs everywhere — Gmail, Outlook, Google Docs, Slack, LinkedIn, Notion, Word. Free covers spelling, grammar and basic punctuation. Premium adds clarity rewrites, tone detection, formality adjustments, plagiarism check and the AI assistant for drafting and rewriting.
The AI assistant drafts emails from prompts, rewrites for length, shortens, lengthens, makes more direct or more diplomatic. Not a Jasper-grade content generator but the right tool for "rewrite this email more politely". Business and Enterprise tiers add brand voice, style guides and admin controls.
Pricing reality check
Free covers grammar, spelling and punctuation. Premium $12-30/month depending on annual vs monthly (the $12 marketing claim is the annual rate; monthly direct is closer to $30). Business $15/user/month minimum 3 seats with brand voice and style guides. Enterprise custom-priced. NachoNacho applies a discount to Premium and Business via the marketplace.
Caveat: AI generator is capped at 100 prompts/month on Premium. Heavy AI users hit the cap and either upgrade to Business or use ChatGPT for the heavy work.
Grammarly vs ProWritingAid vs LanguageTool vs ChatGPT
| Dimension | Grammarly | ProWritingAid | LanguageTool | ChatGPT |
|---|---|---|---|---|
| Premium price | $12-30/mo | $10-20/mo | $20/mo | $20/mo |
| Cross-app coverage | Best in category | Limited | Good | Browser only |
| Long-form analysis | Light | Deepest | Medium | Conversational |
| Best for | Daily typing everywhere | Authors, editors | Privacy-focused | General drafting |
Grammarly wins on cross-app reach and zero-friction onboarding. ProWritingAid wins for fiction writers needing structural feedback. LanguageTool is the privacy-conscious alternative.
Decision matrix: buy or skip
| Situation | Grammarly fit |
|---|---|
| Knowledge worker writing 50+ emails a week | Strong fit |
| Team wanting brand voice and style enforcement | Strong fit on Business |
| Fiction author wanting structural critique | Skip — ProWritingAid is deeper |
| Privacy-strict workflows on local data | Mixed — LanguageTool is more private |
What's included
- Real-time grammar, spelling, punctuation, and clarity corrections across all apps
- Tone detector identifying how writing reads to different audiences
- Plagiarism checker against 16 billion web pages (Premium and Business)
- Generative AI for drafting, rewriting, and adjusting tone on demand
- Style guide enforcement for teams with brand voice and terminology rules
- Snippets: shared text shortcuts for consistent team messaging
- Browser extension working across Gmail, Google Docs, LinkedIn, Slack, and 500,000+ apps
- Analytics for Business plans showing team writing quality and engagement metrics
- SaaSTweaks-verified affiliate deal
- Vendor-direct activation flow with editorial pros + cons review
Grammarly pricing
Verified May 2026. Vendor's published rates at the time we checked — always confirm at checkout.
| Plan | Price | Term | What you get |
|---|---|---|---|
| Free | $0 | forever | Basic grammar and spelling checks; tone detection; 100 AI prompts/mo |
| Premium | $12/mo annual | annual | $30/mo monthly; advanced suggestions, full-sentence rewrites, clarity improvements, plagiarism detection |
| Business | $15/member/mo annual | annual | Minimum 3 members; team style guides, brand tone settings, admin console, analytics |
Getting started
4 steps. The last one is the part most people skip.
- 1
Open Grammarly through the link on this page
It carries our referral tag. The price you pay is identical either way, and it never changes the score on this page.
- 2
Compare the tiers against what you actually use
The pricing table on this page lists what each plan includes. Match it to real usage rather than the tier the vendor highlights.
- 3
Start on the smallest plan that fits
Most vendors let you move up mid-cycle and bill the difference, so starting low costs you nothing but starting high does.
- 4
Check the renewal terms before you commit
Note the renewal date and the rate it reverts to, so the second invoice is not a surprise. Annual plans are usually cheaper per month but harder to exit.
Where Grammarly wins and loses
What works
- Works everywhere — browser extension, Google Docs, Microsoft Word, Outlook, Slack, and native desktop apps
- Real-time tone analysis shows how your writing sounds to the reader before you send
- Full-sentence rewrites suggest cleaner alternatives to awkward phrasing, not just word-level corrections
- Business plan allows custom style guides ensuring everyone on the team writes consistently
What doesn't
- Over-reliance on suggestions can homogenise writing style — best used as a guide, not a replacement for voice
- Premium plagiarism check is useful but not as deep as dedicated academic plagiarism detection tools
- AI suggestions occasionally miss context and propose rewrites that change intended meaning
- Business plan requires a minimum of 3 users — not suitable for individual power users at team pricing
The bottom line
Grammarly offers a robust, widely-integrated writing assistant with strong core capabilities and quick onboarding, though the affiliate-only deal provides minimal savings.
Yes if you write 50+ emails a week and care about tone. The tone meter and clarity rewrites alone justify the $12 annual rate for client-facing work. If you only need spelling and grammar, free covers it.
Free (spelling, grammar). Premium $12/month annual or roughly $30/month direct (clarity, tone, AI 100 prompts/month). Business $15/user/month minimum 3 seats. Enterprise custom.
Grammarly for daily knowledge work — emails, Slack, docs, browser. ProWritingAid for fiction writers and editors who want structural critique, pacing analysis and overused-phrase detection. Many writers run both.
Yes — Google Docs via browser extension, Word via native add-in for Windows and Mac, plus Outlook native plugin. The Docs integration is full-featured with suggestions inline.
Fine for short, contextual rewrites — soften this email, shorten this paragraph, rephrase more formally. Not a content-generation tool. For long-form drafting, Jasper or Copy.ai produce better output.
Cancel any time from settings. Annual plans run for the year. Grammarly offers a 7-day money-back window on first-time annual purchases — request via support before the window closes.
