Grammarly
About
Grammarly is an AI writing assistant founded in 2009 in Kyiv, Ukraine. It checks spelling, grammar, punctuation, clarity and tone as you write, and it works across browsers, desktop apps, email and documents through extensions and apps.
Students, professionals and teams use Grammarly to write clearer emails, reports and posts, rewrite text with AI, adjust tone and check for plagiarism. In 2025, the company acquired the Superhuman email app and renamed itself Superhuman, while keeping Grammarly as the name of the writing product.
As of October 2026, Grammarly has a Free plan, and Pro at $12 per member per month billed annually or $30 billed monthly. Enterprise access is now sold through the wider Superhuman suite, which bundles Grammarly with Superhuman Mail and other tools.
Features and integrations
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Grammar and Spelling Checks: Catches errors in real time across websites, email and documents.
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Tone and Clarity Suggestions: Recommends changes to make writing clearer, more concise or more confident.
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AI Rewriting: Rewrites sentences or paragraphs, generates replies and adjusts length on request.
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Plagiarism Checker: Pro compares text against web pages and academic sources.
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Works Everywhere: Browser extensions and desktop and mobile apps bring suggestions into most writing tools.
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Style Guides and Brand Tones: Teams can set rules so writing stays consistent across the organisation.
Pros and cons
Pros
- Works across almost every app: Suggestions appear wherever you type.
- Excellent grammar checking: Grammarly remains one of the most accurate proofreading tools.
- Useful free plan: Basic corrections are free.
- Good for teams: Style guides and brand tones keep company writing consistent.
Cons
- Monthly billing is expensive: Pro costs $30 a month if not paid annually.
- Can over-edit: Suggestions may flatten a writer's voice if accepted without thought.
- Product changes: The move into the Superhuman suite has changed how business plans are sold.
Founder
Max Lytvyn, Alex Shevchenko and Dmytro Lider
Founder, Superhuman (formerly Grammarly Inc.)
Max Lytvyn, Alex Shevchenko and Dmytro Lider founded Grammarly in Kyiv in 2009. In 2025, the company acquired Superhuman and renamed itself Superhuman, while the writing product keeps the Grammarly name.
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Last updated October 3, 2026