Grammarly
8.2AI writing assistant that checks grammar, tone, and clarity across nearly every app you type in.
AI Writing & Content ToolsFreemium
Web Windows Mac Browser Extension iOS Android
Grammarly score8.2/10
Strengths
- Works nearly everywhere via browser extension and desktop app, not just one editor
- Tone detection helps catch messages that might land wrong before sending
- Business tier's style guide keeps team writing consistent
- Low-friction inline suggestions rather than a separate tool to open
Trade-offs
- Free tier is limited to basic grammar/spelling, not tone or clarity suggestions
- Occasional suggestions feel generic or slightly off for technical writing
- Some users find the constant underlines and popups distracting
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Use cases
- Catching grammar, spelling, and punctuation errors in real time while writing
- Adjusting tone and clarity for emails, docs, and Slack messages
- Generating quick rewrites or summaries of existing text
- Enforcing brand style guidelines across a whole team's writing