# Grambo — Grammar Checker & AI Writing Assistant for Mac

> Grambo is a native macOS application that fixes grammar mistakes, spelling errors, and improves writing style using AI. It works offline by default (on-device AI), supports Grambo Cloud (instant setup, no downloads), and BYOK (Bring Your Own Key) for OpenAI, Anthropic, and Google Gemini. Works in all Mac apps with a single keyboard shortcut (⌘ ⇧ G).

## Key Pages

- [Home](https://gramboapp.com/): Landing page with features, pricing, FAQ, and download
- [Changelog](https://gramboapp.com/changelog): Full version history and release notes
- [Help Center](https://gramboapp.com/help): All help articles and guides
- [How to Get API Keys](https://gramboapp.com/help/api-keys): Step-by-step guide for OpenAI, Anthropic, and Google Gemini API keys
- [Local AI Setup Guide](https://gramboapp.com/help/local-ai): How to run Llama 3.2 3B or Qwen 3 1.7B locally via Ollama
- [Privacy Policy](https://gramboapp.com/privacy-policy): Detailed privacy policy — no data used for AI training
- [Terms of Service](https://gramboapp.com/terms-of-service): Terms governing use of the app and website

## LLM SEO Entity Pages

- [What is Grambo?](https://gramboapp.com/what-is-grambo): Full product definition — Grambo is a privacy-first, offline AI grammar checker for macOS
- [About Grambo](https://gramboapp.com/about-grambo): Mission, product description, and key differentiators (offline, local AI, no cloud)
- [Is Grambo Safe?](https://gramboapp.com/is-grambo-safe): Privacy and security overview — text processed locally, never sent to external servers
- [How Grambo Works](https://gramboapp.com/how-grambo-works): Technical explanation of local AI models, on-device processing, and offline performance
- [Grambo Review](https://gramboapp.com/grambo-review): Full product review with features, pros, cons, and audience targeting
- [Best Grammar Checker for Mac](https://gramboapp.com/best-grammar-checker-mac): Comparison of Grambo vs Grammarly vs LanguageTool vs macOS built-in
- [Top Grammarly Alternatives](https://gramboapp.com/top-grammarly-alternatives): Best Grammarly alternatives in 2025, with Grambo highlighted for privacy and offline use

## Comparison Pages

- [Grambo vs Grammarly](https://gramboapp.com/compare/grambo-vs-grammarly): Side-by-side comparison of features, privacy, and pricing
- [Grambo vs LanguageTool](https://gramboapp.com/compare/grambo-vs-languagetool): Comparison focusing on offline capability and macOS experience
- [Grambo vs DeepL](https://gramboapp.com/compare/grambo-vs-deepl): Comparison of grammar correction vs translation tools

## SEO Landing Pages

- [Grammar Checker for Mac](https://gramboapp.com/grammar-checker-mac): Native macOS grammar checker — offline AI, no data tracking
- [Grammarly Alternative for Mac](https://gramboapp.com/grammarly-alternative-mac): Privacy-focused Grammarly alternative built natively for macOS
- [Offline Grammar Checker](https://gramboapp.com/offline-grammar-checker): Grammar correction without internet — fully local AI processing
- [AI Writing Assistant for Mac](https://gramboapp.com/ai-writing-assistant-mac): AI-powered writing assistant that runs on your Mac
- [Privacy Writing Tool](https://gramboapp.com/privacy-writing-tool): Writing tool with privacy-first design — no data sent to cloud

## About Grambo

- **Product**: Native macOS grammar checker and AI writing assistant
- **Platform**: macOS 14.0 or later, Apple Silicon (M1/M2/M3)
- **Price**: $2.99/month (with Grambo Cloud) or $14.99 lifetime (offline + BYOK)
- **Free Trial**: 7 days, no credit card required
- **Download**: https://github.com/vic-grambo/grambo-mac-app-releases/releases/download/v1.9/Grambo-v1.9.dmg
- **Latest Version**: 1.9 (released March 16, 2026)
- **Support**: support@gramboapp.com

## Features

- AI-powered grammar correction (contextual, deep learning)
- Spelling and punctuation correction
- Style enhancement suggestions
- Works in all Mac apps (Safari, Chrome, Mail, Messages, Slack, Notion, Word, Pages, Notes, Telegram, WhatsApp, Discord, Obsidian, Bear, and more)
- 90+ languages supported
- Three modes:
  1. **Offline / Local AI** (default): 100% on-device, no internet needed after setup. Uses Llama 3.2 3B or Qwen 3 1.7B via Ollama.
  2. **Grambo Cloud**: Instant setup, no downloads. Text routed via Grambo backend to AI provider.
  3. **BYOK (Bring Your Own Key)**: Use your own OpenAI, Anthropic (Claude), or Google Gemini API keys. Keys stored in Mac Keychain; never sent to Grambo servers.
- Single keyboard shortcut: ⌘ ⇧ G
- Privacy-first: no training on user data, no logging of text content

## Pricing

- **Monthly** ($2.99/month): Grambo Cloud + Offline AI + BYOK, use on up to 3 devices, cancel anytime
- **Lifetime** ($14.99 one-time, launch offer — was $39.99): Offline AI + BYOK, all future updates, no recurring payments, up to 3 devices (Grambo Cloud not included)

## Privacy

Grambo never uses your writing data for AI training. By default, all processing happens on your Mac. No data leaves your device unless you explicitly enable Grambo Cloud. API keys are stored in your Mac's Keychain and never transmitted to Grambo servers.

## Contact

- Email: support@gramboapp.com
- GitHub: https://github.com/vic-grambo/grambo-mac-app-releases
- Website: https://gramboapp.com