Side by side
Lunabot vs RewriteBar
Compare what each tool does, what it costs, and how it fits your workflow.
Designed for
AI assistant for all browsers
Rewrite. Refine. Accelerate. — AI productivity for every macOS app. 🚀
Primary task
Writing
Writing
Pricing
Freemium · Free + from $5.99/mo
Free Trial · Trial; then from $29
Pricing details
Free + from $5.99/mo
Free + from $29
Billing cycle
Monthly
One-time
API access
Listed as available
Listed as available
Platforms
Web
Web, macOS
Integrations
Telegram, Chrome
Slack
Source rating
No rating recorded
4.8 / 5 · 6 ratings
Catalog views
2.8k
39k
Estimated monthly traffic
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Catalog imported
30 Aug 2026
30 Aug 2026
Listed strengths
- Supports multiple languages
- ChatGPT prompt assistant
- Summarizes selected text
- Translates selected text
- Generates quiz from text
- Fixes grammar and spelling errors instantly
- Works offline with local models like Ollama or LM Studio
- Works across all macOS applications — Mail, Slack, Notion, VS Code, Figma, etc.
- Lightweight (≈20MB), optimized for Apple Silicon
- Custom AI actions and reusable templates for advanced workflows
Listed limitations
- Limited to browser usage
- Premium plan for unlimited use
- Chat history only with Premium
- Requires plugin for customization
- No mobile app
- macOS only — not available for Windows or web yet
- Learning curve for creating custom AI actions (advanced users benefit most)
- No built-in voice or speech input support (text only)
- Requires macOS Ventura (13.0) or newer
- Needs macOS accessibility permissions to function across apps