What Grammarly is
Grammarly is a writing assistant with a free plan and a paid Pro plan. It works wherever you write, including desktop, mobile, browser extensions, Microsoft Office and Google Docs.
A newsletter operator could use it to proofread issues and adjust tone before sending.
Who it is for
Grammarly is for individual professionals, teams and businesses, enterprises, and students and institutions. Team functions include customer support, marketing, IT, sales and HR.
A newsletter operator would use it to proofread and adjust tone in drafts. It checks writing you already have, and it also rewrites and drafts text. It does not publish or send newsletters.
What you can do with it
Grammarly has several AI agents. Proofreader improves structure and phrasing. Paraphraser rewrites text in a more creative, professional or personal tone. Reader Reactions gives feedback from the view of a chosen reader. Humanizer makes AI-assisted writing sound more natural.
Go is an assistant that works across apps and tabs. Docs is an AI document editor. Other tools include a plagiarism checker, translator, tone detector, snippets, brand tones and a citation generator.
Plans and pricing
Free is $0 and includes basic spelling and grammar correction, tone visibility and 100 AI prompts a month. An account is required.
Pro is $12 USD, and the billing period is not published. It adds full-sentence rewrites, tone adjustment, plagiarism and AI text detection, 2,000 AI prompts a month, and roles, snippets and priority support. Enterprise is priced through sales and adds unlimited prompts, SSO and audit logs. Pro has a 7-day free trial.
What it works with
Grammarly works with Windows and Mac desktop apps, Chrome, Safari, Firefox and Edge extensions, iPhone, iPad and Android, Microsoft Office and Google Docs. Go works across every app, tab and workflow.
Docs is a separate writing surface inside Grammarly.
Things to know before you choose
Pro limits are 2 user groups, 1 style guide and 1 brand tone. The Pro trial sends an email reminder 2 days before it ends. No trial is mentioned for Enterprise.
There is no separate Business plan. Pro includes team features that used to be in Business. Invoices are offered for Grammarly Business with 10 or more members on an annual plan. Grammarly is now part of the Superhuman Suite.
At a glance
From the company's own pages. Prices and plans change, so confirm on their site.
- What it does
- Checks spelling and grammar, shows tone, and rewrites sentences, with AI agents such as Proofreader and Paraphraser.
- Used for
- Proofreading and polishing newsletter copy.
- Free plan
- Yes. It corrects spelling and grammar, shows tone and includes 100 AI prompts a month.
- Starting price
- Pro is $12 USD a month. Yearly billing is not published.
- How it charges
- A flat monthly fee per person. Enterprise is priced through sales.
- Works with
- Windows and Mac desktop apps, Chrome, Safari, Firefox and Edge extensions, Microsoft Office, Google Docs, iPhone, iPad and Android.
- AI features
- Proofreader, Paraphraser, Reader Reactions, Humanizer, the Go assistant and an AI document editor. Pro includes 2,000 AI prompts a month.
- Key features
- Spelling and grammar checking, tone detection, Proofreader, Paraphraser, Reader Reactions, Humanizer, Go assistant, Docs editor, plagiarism check, style guide, snippets and brand tones.
- Plans
- Free (100 AI prompts a month), Pro (2,000 prompts a month, rewrites, plagiarism check) and Enterprise (unlimited prompts, SSO, audit logs).
- Support
- Pro includes priority support, and Enterprise includes dedicated support.
- Company
- Founded in 2009 by Max Lytvyn, Alex Shevchenko and Dmytro Lider. Now part of the Superhuman Suite. It has 40 million users and 50,000 organizations.
- Last checked
- October 10, 2026
Questions operators ask about Grammarly
Is Grammarly free?
Yes. The free plan fixes spelling and grammar, shows tone and includes 100 AI prompts a month.
What does Pro add?
Full-sentence rewrites, tone adjustment, unlimited personalized suggestions, plagiarism and AI text detection, and 2,000 AI prompts a month.
Where can I use it?
On desktop, mobile, browser extensions, Microsoft Office and Google Docs.
Is there a free trial of Pro?
Yes. Pro has a 7-day free trial.
How many AI prompts do I get?
Free includes 100 AI prompts a month. Pro includes 2,000 per member per month. Enterprise has unlimited prompts.
Can a team use Grammarly together?
Yes. Pro includes account roles, snippets, a shared style guide and team analytics, within limits of 2 user groups and 1 brand tone. Enterprise lifts those limits.
Does Grammarly bill by invoice?
Invoices are available for Grammarly Business with 10 or more members on an annual plan.