RubyGem

On-Device AI Notes & Chat

Free · Designed for iPad

Private AI that runs on your device. Search documents, notes, and the web—all offline. Voice mode included. No cloud, no tracking, no subscriptions. RubyGem lets you chat with a local AI and manage your notes—all on your device. No cloud, no tracking, no subscriptions. Your data stays private. Key Features: • Fully on-device AI: Powered by a local LLM. not Apple’s Foundation model. Works across iPhone models—no need for the latest hardware. • AI-powered note-taking: Organize, search, and interact with your notes using semantic search. • Web-enhanced conversations: Retrieve information from the web to enrich your discussions. • Voice conversation mode: Talk to your AI naturally. • Offline functionality: Works without internet (except web search). • Markdown support: Keep your notes structured and readable. Why RubyGem? Unlike cloud-based AI apps, everything happens locally on your iPhone. Your notes and conversations never leave your device, giving you modern AI capabilities with complete privacy. Note: The performance of the local LLM depends on your iPhone model. Currently it is powered by a 1B parameter model, which requires stronger prompting to perform well.

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The developer, Woo Jia Hern, 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
      • Woo Jia Hern
    • Size
      • 574.7 MB
    • Category
      • Productivity
    • Compatibility
      Requires iOS 26.0 or later.
      • iPhone
        Requires iOS 26.0 or later.
      • iPad
        Requires iPadOS 26.0 or later.
      • Mac
        Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 26.0 or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © Matthew Woo Jia Hern
  • Privacy Policy

    • More by Woo Jia Hern