ZetaNotes

AI Notes that run offline.

Only for Mac

Free · In‑App Purchases

Mac

AI-powered note-taking that runs completely offline on your Mac. Autocomplete, summarization, translation, and semantic search - all private with GPU acceleration. ZetaNotes runs AI models entirely on your Mac. No cloud connection required. Your notes and AI processing never leave your device. CORE CAPABILITIES • AI Autocomplete - Predictive text completion as you type using on-device language models • Text Summarization - Generate concise summaries from longer note content • Language Translation - Translate to 12+ languages including English, Spanish, French, German, Chinese, Japanese, Korean, Arabic, Italian, Portuguese, Russian, and Dutch • Grammar Correction - Fix spelling and grammatical errors in selected text • Text Reformulation - Rewrite sentences with alternative phrasing • Semantic Search - Find notes by meaning using local vector embeddings, not just keyword matching • Auto Title Generation - Automatically generate descriptive titles from note content AI CHAT ASSISTANT (PRO) Conversational AI interface for open-ended queries. Ask questions, brainstorm ideas, or get writing assistance. Full conversation history persisted locally. CUSTOM TOOLS (PRO) Create application-specific AI tools with custom prompts. Configure individual temperature, token limits, and stop sequences per tool. Build workflows tailored to your specific use cases. TECHNICAL SPECIFICATIONS • 8 Open-Source AI Models Available - Llama 3.2 (1B/3B), Phi-3.5 Mini, Gemma 2 2B, Qwen 2.5 (1.5B/3B), SmolLM2 1.7B, Phi-2 2.7B, TinyLlama 1.1B • Metal GPU Acceleration - Hardware-accelerated inference on Apple Silicon • Model Format - GGUF quantized models optimized for M-series chips • Model Size Range - 700MB to 2.3GB per model (downloaded on demand) • Inference Engine - llama.cpp with Apple Metal backend • Vector Search - Local embedding generation with cosine similarity ranking PRIVACY & SECURITY • Zero Network Connectivity - All AI processing runs locally on device • No Telemetry - No analytics, crash reporting, or usage tracking • No Cloud Sync - Notes stored exclusively in local SQLite database • No Account Required - No registration, login, or personal information collected • Keychain Integration - License keys stored in macOS Keychain with local encryption SYSTEM ARCHITECTURE • Native SwiftUI Interface - Optimized for macOS with standard system controls • Core Data Persistence - Note storage with SQLite backend and automatic indexing • Memory Management - Optimized context caching reduces RAM usage by 90% • Batch Processing - Efficient token generation for summarization tasks • Async Inference - Non-blocking AI operations preserve UI responsiveness STORAGE LOCATIONS • Notes Database: ~/Library/Application Support/ZetaNotes/notes.sqlite • AI Models: ~/Library/Application Support/ZetaNotes/Models/ • Settings: ~/Library/Preferences/com.zetanotes.ZetaNotes.plist FREE TIER FEATURES • Llama 3.2 1B model (700MB) • AI Autocomplete • Text patch and grammar correction • Text reformulation (rephrasing) • Summarization • Translation (12+ languages) • Semantic search • Unlimited notes • Unlimited storage PRO TIER FEATURES Available via in-app purchase: Monthly ($1), Annual ($6), or Lifetime ($20) • All Free features • AI Chat Assistant with conversation history • 8 AI models (download any combination) • Custom AI tool creation • Full prompt editing for all built-in tools • Parameter tuning (temperature, tokens, stop sequences) • Priority support REQUIREMENTS • macOS 13.0 (Ventura) or later • Apple Silicon (M1/M2/M3/M4) recommended, Intel supported • 4 GB RAM minimum (8 GB+ recommended for 3B models) • 2 GB disk space (includes app + at least one AI model) INSTALLATION Standard macOS application. Code signed with Apple Developer ID and notarized by Apple. No security warnings or workarounds required. UPDATES Automatic updates via Sparkle framework. Updates download and install in background with user confirmation. TECHNOLOGY Built with llama.cpp inference engine and open-source language models from Meta (Llama), Microsoft (Phi), Google (Gemma), Alibaba (Qwen), and Hugging Face (TinyLlama, SmolLM2).

Ratings & Reviews

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- New support for the Qwen3 4B model - Better markdown support

Version 1.0.2

The developer, Rabah Abdul Khalek, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    • Seller
      • Rabah Abdul Khalek
    • Size
      • 15.4 MB
    • Category
      • Productivity
    • Compatibility
      Requires macOS 13.0 or later.
      • Mac
        Requires macOS 13.0 or later.
    • Languages
      • English
    • Age Rating
      4+
    • In-App Purchases
      Yes
      • ZetaNotes Pro Annual $5.99
      • ZetaNotes Pro Lifetime $19.99
      • ZetaNotes Pro Monthly $0.99
      • Learn More
    • Copyright
      • © 2025 Abdul Khalek
  • Developer Website
  • Privacy Policy
  • License Agreement

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