Grammarly
An AI-powered writing assistant that checks grammar, tone, clarity, and offers generative rewriting across apps.
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Best for individuals and teams who want real-time grammar, tone, and AI rewriting across apps with strong security. The Pro plan offers 2,000 AI prompts/month at $12/month (billed annually), but it’s more expensive than focused alternatives like LinguaPilot AI for desktop coaching. If you only need prompt refinement or marketing copy, consider Prompt Enhancer AI or Jasper instead.
What is Grammarly?
Grammarly is an AI writing assistant that checks grammar, spelling, clarity and tone across the web and apps. Its generative features can rewrite, shorten or adjust the tone of text, helping professionals and students write clearer, more polished content everywhere they type.
How we scored Grammarly
Grammarly earns strong capability points for its deep feature set, real-time suggestions, AI agents, Docs editor, and cross-platform reach. Ease of use is solid thanks to integrations and intuitive underlines, though the feature breadth can overwhelm. Value is fair: $12/month annual for Pro is reasonable for heavy users but steep for casual ones. Delivery is strong with enterprise-grade security and proven reliability. The price and complexity hold it back from a higher score.
Pros and cons
What we liked
- Works in over one million apps and websites, so suggestions appear where you write.
- Pro plan includes 2,000 AI prompts/month plus plagiarism and AI detection for $12/month (annual billing).
- Enterprise adds strong security and admin features like SAML SSO, data loss prevention, and unlimited prompts.
Where it falls short
- Pro plan costs $12/month (annual) or $30/month billed monthly, which is steep for casual users.
- No offline mode, requires internet connection to work.
- The breadth of features can overwhelm users who only need prompt refinement or marketing copy generation.
Key features
Grammarly pricing
Grammarly offers a Free plan at $0/month with basic grammar, tone detection, and 100 AI prompts/month. The Pro plan is $12/member/month when billed annually (or $30/month billed monthly) and adds full-sentence rewrites, tone adjustment, plagiarism and AI detection, and 2,000 AI prompts/month. Enterprise pricing requires contacting sales. Pricing verified from Grammarly’s plans page and support documentation.
| Plan | Price | Who it is for |
|---|---|---|
| Free | $0/month | Basic grammar, tone detection, and 100 AI prompts/month. |
| Pro | $12/member/month (billed annually) or $30/month billed monthly | Everything in Free plus full-sentence rewrites, tone adjustment, plagiarism and AI detection, and 2,000 AI prompts/month. |
| Enterprise | Contact Sales | Everything in Pro plus unlimited AI prompts, proactive AI via Superhuman Go, dedicated support, BYOK encryption, admin controls, and data loss prevention. |
Pricing reflects what we saw at time of review (2026-08). Always confirm current pricing on the tool's own site.
Who should use Grammarly?
Anyone who writes across multiple platforms, emails, documents, social media, and wants grammar, tone, and AI rewriting built into their workflow. Professionals, students, and teams benefit from the Free plan’s basic checks or the Pro plan’s 2,000 AI prompts/month and plagiarism detection. Large organizations needing security, admin controls, and unlimited AI prompts will find Enterprise a fit. If you only need help improving AI prompts or marketing copy, Prompt Enhancer AI or Jasper may be more cost-effective.
Skip it if: Budget users needing only prompt improvement or marketing copy
Frequently asked questions
What does the Free plan include?+
The Free plan costs $0/month and includes basic grammar, tone detection, and 100 AI prompts per month.
How much does the Pro plan cost?+
Pro is $12 per member per month when billed annually, or $30 per month if billed monthly, and adds full-sentence rewrites, tone adjustment, plagiarism and AI detection, and 2,000 AI prompts/month.
Can I use Grammarly offline?+
No. Grammarly requires an internet connection to provide suggestions across its apps and editors.
What platforms does Grammarly support?+
Grammarly works via web, browser extensions, Windows and macOS apps, iOS and Android apps, and Microsoft Office add-ins.
What extra features does Enterprise offer?+
Enterprise adds unlimited AI prompts, proactive AI via Superhuman Go, dedicated support, BYOK encryption, admin roles, SAML SSO, data loss prevention, and analytics.
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