Grammarly
AI writing assistants
Plagiarism checker software
Proofreading software
Plagiarism software
AI grammar checker tools
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
Take the quiz to check if Grammarly and its alternatives fit your requirements.
$12 per member per month
Free TrialFree version
Small
Medium
Large
- Real estate and property management
- Education and training
- Information technology and software
What is Grammarly
Grammarly is an AI writing assistant that helps users draft, revise, and proofread text across web and desktop applications. It is used by individuals and teams to improve clarity, tone, correctness, and consistency in emails, documents, and other business writing. The product is delivered through browser extensions, desktop and mobile apps, and integrations with common productivity tools. Grammarly also includes plagiarism detection features in certain plans, supporting academic and professional originality checks.
Broad cross-app availability
Grammarly works through browser extensions and desktop/mobile apps, allowing it to assist writing in many web-based and installed applications. This makes it practical for day-to-day business communication such as email, documents, and messaging tools. Compared with tools that focus on a single workflow, it is positioned as a general-purpose writing layer across environments.
Strong editing and rewrite tools
The product provides grammar, spelling, punctuation, and style suggestions alongside AI-assisted rewrites. It also supports tone-related guidance to help align writing with common business contexts. These capabilities cover both corrective proofreading and higher-level revision, reducing the need to switch between separate proofreading and generative writing tools.
Team and enterprise controls
Grammarly offers business plans that support centralized billing and administrative management. Enterprise offerings include features typically required for organizational deployment, such as policy controls and security-oriented options. This makes it more deployable for teams than consumer-only writing tools.
Plagiarism scope varies by plan
Plagiarism detection is not uniformly available across all editions and may require specific paid tiers. Organizations evaluating it primarily as plagiarism software need to confirm plan entitlements, limits, and reporting detail. For some use cases, dedicated plagiarism tools may provide more specialized workflows and controls.
Suggestions can require review
AI rewrites and tone suggestions can change meaning or introduce phrasing that does not match internal style expectations. Users often need to review recommendations carefully, especially for regulated, technical, or customer-facing communications. This can reduce time savings for high-stakes content where precision is critical.
Integration depth is uneven
While Grammarly is available in many contexts via extensions and apps, the depth of integration can vary by platform and editor. Some environments may not support all features consistently (for example, advanced suggestions or formatting-aware edits). Teams may need testing and user guidance to standardize the experience across tools.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Free | $0 per month | Basic grammar and spelling corrections; tone detection; 100 AI prompts per month. |
| Pro | $12 per member/month (billed annually); $30 per member/month (if billed monthly) | Everything in Free plus full-sentence rewrites, tone adjustment, plagiarism and AI-detection, 2,000 AI prompts per member/month. 7-day free trial available ("Start 7-Day Trial"). |
| Enterprise | Contact Sales (custom pricing) | All Pro features plus dedicated support, BYOK encryption, custom roles & permissions, data loss prevention, cost-center visibility, unlimited AI prompts; priced per organization—contact sales. |
Seller details
Grammarly, Inc.
San Francisco, CA, USA
2009
Private
https://www.grammarly.com
https://x.com/Grammarly
https://www.linkedin.com/company/grammarly/
