Our verdict · 8.3/10 Excellent
The easiest way to raise baseline writing quality across a team. Generative features overlap with general assistants.
Key takeaways
- Best for: Teams writing client-facing email.
- Strongest area: Ease of use (9.4/10). Weakest: Support & reliability (7.8/10).
- Price: Free plan; paid from around $12–15 / user / month — free plan available.
- Watch out for: Generative AI limits by plan.
What is Grammarly?
Grammarly checks grammar, clarity and tone across browsers, desktop apps and email, and adds generative AI for drafting and rewriting. Business plans add style guides, brand tones and admin controls.
Grammarly is made by Grammarly and is reviewed here as a AI writing tool. It is priced on a freemium basis, and our editorial score is 8.3 out of 10, calculated from six weighted criteria.
Who it’s for — and who should skip it
Choose Grammarly if
- Teams writing client-facing email
- Non-native English writers
- Consistent style across a company
Not for you if
- Long-form content generation
- Highly technical writing checks
Key features
Real-time corrections as you type.
Detect and adjust tone.
Company terminology and rules.
Draft and rewrite with prompts.
- Chrome
- Microsoft Word
- Gmail
- Slack
- Google Docs
Pros & cons
What we like
- Works in almost every app
- Very easy to use
- Style guides for teams
- Tone detection
Watch out for
- Generative AI limits by plan
- Suggestions can be over-eager
- Privacy review needed for sensitive text
Pricing & true cost
| Plan | Indicative price | Notes |
|---|---|---|
| Free | Free | Up to 1 user |
| Pro | ≈ $12 / user / mo | Billed annually |
| Enterprise | Custom quote | — |
True cost at 5, 10 and 25 seats
Cheapest paid plan that fits each team size, from indicative list prices checked October 30, 2026. Excludes tax, add-ons, onboarding fees and promotional discounts.
Pricing watch-outs
- Quote-only tier. Enterprise has no public price. Ask for a written quote that includes onboarding and support fees.
Contract questions to ask before you sign
- Does the plan auto-renew, and how many days’ notice do you need to cancel?
- Is the advertised price for annual billing? What is the month-to-month price?
- Is the first-year price a promotion? What will renewal cost, and is it capped?
- Is there a minimum number of seats, or a charge for inactive users?
- Are onboarding, implementation or premium-support fees extra?
- How do we export all our data if we leave, and in what format?
General questions for any vendor — not findings about this product. Build a full checklist with our requirements builder.
Indicative USD pricing, last checked October 30, 2026. Vendors change prices and promotions often — always confirm on their website. Model your own numbers with our SaaS TCO calculator.
Score breakdown
| Criterion | Weight | Score | Points | |
|---|---|---|---|---|
| Features & fit | 25% | 8.0 | 2.00 | |
| Ease of use | 15% | 9.4 | 1.40 | |
| Value for money | 15% | 8.0 | 1.20 | |
| Support & reliability | 10% | 7.8 | 0.80 | |
| Security & privacy | 20% | 8.0 | 1.60 | |
| Integrations & ecosystem | 15% | 8.4 | 1.30 | |
| Overall | 100% | Weighted for AI tools products | 8.3 | |
Security & compliance facts
| Item | Status | Question to ask Grammarly |
|---|---|---|
| Multi-factor authenticationStops most account takeovers from reused or phished passwords. | Not verified by us | Can admins enforce MFA for every user, on every plan? |
| Single sign-on (SAML/OIDC)Lets you remove a leaver’s access everywhere from one place. | Not verified by us | Is SSO included on the plan we are buying, or only on enterprise tiers? |
| SOC 2 Type II reportIndependent audit of the vendor’s security controls — often required by larger customers. | Not verified by us | Can we see your current SOC 2 Type II report (under NDA if needed)? |
| ISO/IEC 27001 certificationInternational standard for running an information-security programme. | Not verified by us | Which legal entity and services does your ISO 27001 certificate cover? |
| GDPR data processing agreementNeeded if you handle personal data of people in the EU/UK. | Not verified by us | Do you offer a signed DPA and list your sub-processors? |
| HIPAA business associate agreementRequired before US healthcare businesses store protected health information. | Not verified by us | Will you sign a BAA, and on which plans? |
We have not yet verified these items for Grammarly against a primary source, so we don’t claim them either way. Check Grammarly’s trust or security page and ask for documents in writing.
Before you buy any AI writing tool
Check Grammarly against the same list we use for every AI writing tool — and confirm each point on the plan you intend to buy, not the top tier.
- Brand voice / style guide support
- Works inside your writing apps
- Team management
- Clear data-usage terms
- Pricing per seat vs usage
See every ranked option in AI Writing Tools.
Grammarly alternatives
Pick an alternative by what matters to you
- Cheaper
Wordtune≈ $70/mo vs $120/mo at 10 users (cheapest paid plans, indicative) - Stronger on security
WriterSecurity & privacy score 9.0 vs 8.0 - Higher overall score
ChatGPTOverall 8.6 vs 8.3
Computed from our published scores and indicative pricing for tools in the same category as Grammarly. Scores are editorial; see the methodology.
Editor’s picks
An AI content platform for marketing teams, built around brand voice.
A thoughtful AI assistant known for long documents, nuanced writing and coding.
Head-to-head comparisons
Featured in: Best AI Writing Tools for Business
Review history
- Scored under methodology v2.0 (six weighted criteria, computed overall score).
Grammarly FAQ
Is Grammarly safe for business documents?
Business plans offer enterprise controls. Review Grammarly's data policies for sensitive content.
Does Grammarly have a free plan?
Yes. Grammarly offers a free plan. Paid plans start at Free plan; paid from around $12–15 / user / month (indicative — check the vendor for current pricing).
Who is Grammarly best for?
Grammarly is best for: teams writing client-facing email; non-native English writers; consistent style across a company.
How much does Grammarly cost for a team of 10?
On indicative list prices, the cheapest paid plan that fits 10 users (Pro) works out at roughly $120 per month, or about $1,440 per year, before tax, add-ons and discounts.
How is the Grammarly score calculated?
The 8.3/10 overall score is a weighted average of six sub-scores — features & fit, ease of use, value, support & reliability, security & privacy, and integrations — using the published weights for AI products. Affiliate relationships have no input. See our methodology page for the full rubric.
What are the best alternatives to Grammarly?
Popular alternatives include Jasper, Claude. See our comparisons for side-by-side verdicts.