Grammarly
by Superhuman (formerly Grammarly, Inc.)
AI writing assistant for grammar, tone and rewrites
PricingFreemium
Starts at$12 USD (Pro)
Free tierYes
Platformsweb, windows, macos, ios, android, browser-extension
Models used—
Best for
Anyone writing in English who wants grammar fixes, tone suggestions and quick rewrites across apps.
Overview
Grammarly checks grammar, spelling and tone and offers AI rewrites and text generation. It is now part of the Superhuman platform, with Free, Pro and Enterprise plans.
Strengths and limits
- Works across browsers and desktop apps
- Full-sentence rewrites and tone adjustment on Pro
- Plagiarism and AI-text detection on Pro
- Free plan limited to 100 AI prompts per month
- Advanced rewrites and tone changes require Pro
What the free plan includes
Spelling and grammar corrections, tone detection, 100 AI prompts per month