grammarly
IA writing assistant for correction, grammar, style and tone. 40M+ users. Free plans (100 prompts/month) and Pro ($12/mo) with plagiarism and AI detection.

About grammarly
Grammarly is the most used IA writing assistant in the world, with over 40 million users and 50,000 companies. It corrects grammar, style, tone and detects plagiarism.
The free plan offers basic corrections and 100 IA prompts per month. The Pro Plan ($12/mo per year) adds full rewrites, tone adjustments, plagiarism and AI detection, and 2,000 IA/month prompts.
Grammarly integrates everywhere: Gmail, Google Docs, Microsoft Word, Slack, Notion, browsers (Chrome, Safari, Edge) and desktop apps (Windows, macOS). The Business Plan ($15/member/mo) includes team analytics and style guides.
Key features
Correction
Grammar, spelling, punctuation
Style
Clarity, conciseness, tone, fluidity
Plagiarism
Text and IA detection included
Analytics
Statistics team (Business)
Video tutorials