Loci - Private, Local AI

Offline AI that just works

Free

Loci is a private AI chat app for your iPhone. No account and no subscription. Download a model once and chat anywhere, even in airplane mode. If you want a ChatGPT alternative that keeps your conversations on your phone, this is it. NO SETUP, NO JARGON Loci checks your iPhone and picks a model that runs well on it. You never think about RAM, file sizes, or quantization. Open the app, download once and then start chatting. PRIVATE BY DESIGN Your chats, photos, and voice input are processed on your devices. Diagnostic sharing is optional and can be turned off in Settings. Downloaded models work in airplane mode. REAL MODELS, RUNNING LOCALLY Chat with well-known open models like Google's Gemma 4, Qwen 3.5, and Llama. Browse more anytime. Loci only offers models your phone can actually run. LINK TO YOUR MAC OR PC Run Loci on your Mac or PC too? Pair the two, and your iPhone can use the much larger models your computer runs. The power of a desktop, in your pocket, still on hardware you own. PHOTOS AND DOCUMENTS Attach a photo and ask what's in it. Add a PDF, Word file, or EPUB and ask questions about it. Reading happens on device. TOOLS THAT DO REAL WORK A calculator that computes instead of guessing. Unit conversions. Reminders and Calendar. Web search when you ask for it. A memory that carries your preferences from chat to chat. TALK INSTEAD OF TYPING Tap the waveform and speak. Loci answers out loud and keeps listening. Speech stays on your phone. MADE FOR THE TASK AT HAND Focus modes for coding, writing, studying, and brainstorming. Apple Shortcuts for automations. Available in English and Spanish. EASY ON THE PLANET Every cloud AI answer runs in a data center. Loci runs on the phone already in your pocket. Free. Offline. Yours.

  • 4.9
    out of 5
    135 Ratings

Bug fixes and improvements.

The developer, Michael Waldman, 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 Linked to You

    The following data may be collected and linked to your identity:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

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

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

Seller
Michael Waldman
Size
76.5 MB
Category
Productivity
Compatibility
Requires iOS 18.0 or later.
  • iPhone
    Requires iOS 18.0 or later.
  • iPad
    Requires iPadOS 18.0 or later.
  • Apple Vision
    Requires visionOS 2.0 or later.
Languages
English and Spanish
Age Rating
4+
Copyright
© 2026 Michael Waldman