Phantasm

Self-Hosted AI Chat

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Your models, your hardware, your data. Phantasm is a private AI chat client for the backend you run. Ollama, vLLM, llama.cpp, or any OpenAI-compatible server. Phantasm is a private AI chat client for the backend you already run. Point it at your own server: Ollama, vLLM, llama.cpp, or any OpenAI-compatible endpoint and chat with your own models over your own network. No account, no middleman, no data collection. YOUR SERVER, YOUR RULES • Connect with just a URL and a token — works against a bare Ollama out of the box • Add the open-source Phantasm orchestrator to unlock web search, image generation, and research modes • Multiple backend profiles for home network, VPN, or tunnel setups • Your token lives in the iOS Keychain; conversations are stored only on your phone A REAL CHAT EXPERIENCE • Fast streaming responses with markdown, syntax-highlighted code blocks with copy, and charts • Attach photos and files — vision models can see your images • Generated images appear inline; save or share them • Dictate messages with on-device transcription and have replies read aloud • Long generations survive backgrounding and pick up where they left off • Ask Phantasm from Siri and Shortcuts TOOLS ON YOUR TERMS • Per-chat toggles for web access and image generation • Optional device tools — location, calendar, Apple Health — are off by default and only shared with your own backend when you enable them • See the model's reasoning when a thinking model is selected PRIVATE BY DESIGN Phantasm operates no servers and collects no data. The app talks exclusively to the backend you configure — nothing else. What you say to your AI is between you and your hardware. Phantasm requires an OpenAI-compatible server that you provide (for example, Ollama running on your own machine). Feature availability depends on your backend's capabilities.

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• ### What’s New in Phantasm 1.2 - Generate audio and video with compatible servers. - Play audio in chat with seeking, background playback, and Lock Screen controls. - Watch generated videos in chat and share generated media as files. - View inline and block equations with native math formatting. - Track estimated token use, context limits, response speed, and reasoning time. - Experience smoother performance in long and image-heavy chats. - Use more reliable dictation when switching chats or interrupting recording. - Improved backend compatibility and general stability fixes.

Version 1.2

The developer, Benjamin Carman, 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
    • Benjamin Carman
    Size
    • 19.1 MB
    Category
    • Productivity
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Ben Carman
  • Developer Website
  • Privacy Policy

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