Grammarly Colorizer vs Mailbutler: side-by-side comparison of pricing, ratings, and features on SoftwareVital (2026).
Pricing models differ: Grammarly Colorizer is free, Mailbutler is paid. Feature lists share 0 overlapping items across the two listings.
Browser extension that colors grammatical structures on webpages to help you read and understand text better.
AI email assistant for Apple Mail, Gmail, and Outlook with writing help, email tracking, templates, and send-later scheduling.
| Attribute | Grammarly Colorizer | Mailbutler |
|---|---|---|
| Rating | — | — |
| Reviews | — | — |
| Pricing | free | paid · $3.95 |
| Votes | 0 | 0 |
| Category | AI Grammar Checker | AI Email Assistant |
| Feature | Grammarly Colorizer | Mailbutler |
|---|---|---|
| You can set custom colors in the extension options | ||
| You can also enable deep learning mode in the options to have slower but better parsing quality | ||
| With this deep learning mode you can also display the sentence dependency tree | ||
| English only for the fast parser | ||
| English and French for the deep-learning mode starting from version 0.96 | ||
| Version 0.98 is smaller and faster but less accurate | ||
| AI-powered email assistant for Apple Mail | ||
| and Outlook to boost productivity |