DeviceAI
Evan Yeoh
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About this app
Run powerful AI models entirely on your iPhone — no internet, no subscriptions, no data sharing. DeviceAI is a privacy-first chat app that runs large language models (LLMs) completely on your device using Apple's Metal GPU acceleration. Your conversations never leave your phone. KEY FEATURES • 100% On-Device Processing — All AI inference happens locally. Zero cloud dependency. • 60+ Open-Source Models — Choose from Llama, Qwen, Phi, Mistral, DeepSeek and more • Full Privacy — No data collection, no analytics, no telemetry. Your chats stay on your device. • Offline-First — Works perfectly without internet after model download • Streaming Responses — See AI responses appear in real-time • Reasoning Models — Support for advanced thinking models like DeepSeek R1 • Markdown & Code — Beautiful formatting with syntax highlighting • Customizable — Adjust system prompts, temperature, and generation parameters • Conversation History — All chats saved locally with Isar database PERFECT FOR • Privacy advocates who want AI without cloud exposure • Travelers and remote workers who need offline AI assistance • Developers testing open-source models • Students wanting unlimited, free AI tutoring • Anyone who values data sovereignty TECHNICAL DETAILS • Powered by llamadart (llama.cpp for Flutter) • Supports GGUF format models from HuggingFace • Metal GPU acceleration for fast inference (15-40 tokens/second) • Models range from 0.5B to 8B parameters • Requires iOS 16.0 or later Download models once, use forever. No subscriptions, no API keys, no compromises. Your data stays on your device. Always.
What's new
Version 1.3.0 · Jul 10, 2026
Document Q&A — Import PDFs, text, and Markdown files and ask questions about them. All processing stays on your device. Voice Input — Speak your messages using on-device speech recognition. Your voice never leaves your iPhone. Custom Model Import — Import your own GGUF models from the Files app or a direct download URL. Search Your Chats — Find past messages by content, not just conversation titles. Export Conversations — Save and share chats as Markdown files. Prompt Templates — 25 ready-to-use prompts for writing, coding, learning, productivity, and more. Storage Management — View and delete downloaded models and indexed documents. Vision Models — Download vision-capable models to analyze images in chat. Bug fixes and performance improvements.
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