Loci - Private, Local AI

Loci is a private, offline AI chat app for iPhone. Download a compatible model once and chat without an account, subscription, or internet connection—even in airplane mode. Your conversations, photos, documents, and voice input are processed on your devices.

Loci supports local open models including Gemma, Qwen, and Llama, automatically selecting models your iPhone can run. Pair it with a Mac or PC to access larger models, or use built-in tools for calculations, conversions, reminders, calendar actions, web search, and memory. Attach PDFs, Word files, EPUBs, and photos, speak with voice mode, use coding and writing focus modes, and automate tasks with Apple Shortcuts. Available in English and Spanish.