Grammarly

AI communication assistant for clear, confident, professional writing

Writing companion that corrects grammar, improves sentence flow, checks tone, and assists with rewriting directly in any app.

Pricing

Freemium. Free basic plan; Premium at $12/month billed annually.

Key features

Contextual tone detector
Clarity & conciseness rewrites
Plagiarism checker
One-click email replies

Pros

Works ubiquitously inside Gmail, Slack, Word, Google Docs
Unobtrusive inline suggestions
Dependable grammar rules

Cons

Can occasionally over-sterilize author voice
Full generative capabilities need premium

Use cases

Polishing business correspondence
Academic paper proofreading
Cross-cultural team communication

Platforms

Chrome Extension
Windows
macOS
iOS
Android