GrammarBot vs PaletteBrain: side-by-side comparison of pricing, ratings, and features on SoftwareVital (2026).
Pricing models differ: GrammarBot is free, PaletteBrain is paid. Feature lists share 0 overlapping items across the two listings.
GrammarBot is an offline AI grammar checker for Mac that checks English spelling and grammar without sending your text online.
PaletteBrain is a macOS app that brings ChatGPT into any application through keyboard shortcuts, for quick AI writing help.
| Attribute | GrammarBot | PaletteBrain |
|---|---|---|
| Rating | — | — |
| Reviews | — | — |
| Pricing | free | paid · $29 |
| Votes | 0 | 0 |
| Category | AI Email Assistant | AI Assistant |
| Feature | GrammarBot | PaletteBrain |
|---|---|---|
| Works offline | ||
| no internet connection needed | ||
| Private | ||
| typed text doesn't leave your laptop | ||
| Uses a local LLM (large language model) for AI processing | ||
| Currently only available for MacOS computers with M1/M2/M3 chips | ||
| Requires 8GB or more of RAM | ||
| AI model size is around 4GB | ||
| Contact us for custom pricing |