Grammarly

Grammarly is the most widely used AI writing assistant in the world, installed in over 30 million browsers. While newer AI tools get more attention, Grammarly’s strength is integration: it works inside Gmail, Google Docs, Microsoft Word, Slack, and nearly everywhere else you type.

What Grammarly Does

• Grammar and spelling corrections: Real-time error detection across all tiers, working in the browser and Google Docs.
• Clarity and concision: Premium adds sentence-level suggestions to cut wordiness and improve readability.
• Tone detection: Identify how your writing comes across (confident, formal, friendly) and adjust accordingly.
• Vocabulary enhancement: Suggests stronger, more precise word choices.
• GrammarlyGO: AI generation on Premium. Drafts emails, continues your writing, and rewrites selected text with different tones.
• Plagiarism detection: Premium includes Copyscape-powered plagiarism checking.

Pricing

Plan	Price	Key Features
Free	Free	Grammar, spelling, basic clarity, browser integration
Premium	$12/month (annual)	Advanced clarity, tone, vocabulary, GrammarlyGO, plagiarism
Business	$15/user/month	Team style guides, brand tone consistency, analytics, admin controls

Who Grammarly Is For

Grammarly shines for professionals who write a lot but don’t identify as writers: executives, sales reps, customer success managers, and anyone sending a high volume of emails, reports, or client communications.

If your primary need is to generate content from scratch, ChatGPT or Claude are more capable. Grammarly’s real value is making your own writing better in real time with zero workflow disruption.

Free vs. Premium: Is the Upgrade Worth It?

The free tier is genuinely useful. It catches errors that matter (grammar, spelling, basic punctuation) and works everywhere you type.

Premium adds value if:

• You write professionally and want tone and clarity improvements
• Miscommunication in writing has real consequences in your job
• You send a high volume of email and want faster drafting via GrammarlyGO

For most casual users, free is enough. For professionals writing 50+ emails per week, Premium pays for itself quickly.

Grammarly vs. Alternatives

Feature	Grammarly Free	Grammarly Premium	Claude	ChatGPT
Real-time corrections	✅	✅	❌	❌
Browser integration	✅	✅	❌	❌
Long-form writing help	Basic	✅	✅ Excellent	✅
Draft generation	❌	✅ GrammarlyGO	✅	✅
Plagiarism check	❌	✅	❌	❌
Starting price	Free	$12/month	$20/month	$20/month

The comparison that matters: Grammarly lives in your workflow. Claude and ChatGPT require you to go to them. For in-the-moment corrections, nothing beats Grammarly.

Verdict

Best-in-class for real-time writing assistance. The free tier is one of the best free products in the AI space. Premium adds meaningful value for professional writers. The limitation is that it enhances your writing rather than replaces the thinking behind it, which for many use cases is exactly the right tool.

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Frequently Asked Questions

Is Grammarly free? Yes, the free tier includes grammar, spelling, and basic clarity suggestions with browser and Google Docs integration. Premium ($12/month billed annually) adds advanced tone, clarity, GrammarlyGO, and plagiarism detection.

Does Grammarly work in Microsoft Word? Yes, Grammarly has a Word add-in for Windows and Mac. It also works in Google Docs, Gmail, Outlook, Slack, and virtually any browser text field.

How does GrammarlyGO work? GrammarlyGO is the AI generation feature in Premium. You can ask it to draft an email, continue your writing, or rewrite a selected passage in a different tone. It uses your writing context to generate relevant suggestions.

Is Grammarly better than just using ChatGPT for editing? They serve different purposes. Grammarly works inline everywhere you type, for real-time corrections and quick improvements. ChatGPT is better for drafting from scratch or generating large amounts of content. Many professionals use both.