ArcanAI

Your AI, your device, your rules. Run powerful language models privately and offline with no accounts, no subscriptions, no data ever leaves your phone.

ArcanAI is a private, on-device AI chat app that runs open-source language models entirely on your iPhone or iPad. No accounts. No subscriptions. No cloud. No internet required.

Import any GGUF model from Hugging Face and start chatting — every conversation happens locally, powered by hardware-accelerated inference using Apple's Metal framework. Your messages never leave your device.

KEY FEATURES

• Run AI models 100% offline — on a plane, off the grid, anywhere
• Import any GGUF model from Hugging Face — choose the size and capability that fits your device
• Store and switch between up to 5 models at once
• Analyze documents — upload PDFs, spreadsheets, text files, CSVs, and more
• GPU-accelerated inference for fast, streaming responses
• Full conversation history with multiple independent chats
• Edit messages and regenerate responses
• Customize temperature, max tokens, and system prompts
• Beautiful dark UI with markdown-rendered responses
• Text-to-speech support

SUPPORTED MODEL FAMILIES

Llama, Gemma, Mistral, Phi, Qwen, and any ChatML-compatible model.

RECOMMENDED STARTER MODELS

• Llama 3.2 1B (~570 MB) — great for older devices
• Gemma 2 2B (~1.0 GB) — balanced performance
• Qwen 2.5 3B (~1.5 GB) — multilingual and code capabilities

PRIVACY FIRST

Zero data collection. Zero telemetry. Zero crash reporting. Zero cloud sync. Your conversations and model files stay on your device — always.