# DeviceAI — Private AI, Runs On-Device

> Private AI, Runs On-Device (iPhone/iPad app by Evan Yeoh.)

- Source: https://appshunter.io/ios/app/deviceai/id6760162343 (this page in markdown: same URL + `.md`)
- Developer: [Evan Yeoh](https://appshunter.io/developer/873959340)
- Category: Productivity, Developer Tools
- Price: $2.99
- Age rating: 4+
- Requires: iOS 16.4 · 34 MB
- Languages: American English
- Released: 2026-03-16
- Data updated: 2026-07-22
- User reviews in markdown: https://appshunter.io/ios/app/deviceai/id6760162343/reviews.md

## What is DeviceAI?

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.


## Version history (last 5 releases)

### 1.3.0 — 2026-07-10

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.

### 1.2.0 — 2026-05-27

DeviceAI is now a one-time paid app.

  This update includes a more polished chat experience, improved model library presentation, clearer local/private status indicators,
  and startup reliability fixes for iOS. It also improves App Store screenshots and release metadata for the paid version.

  As always, DeviceAI runs AI models locally on your iPhone. No account, no subscriptions, and no cloud inference required.

### 1.1.0 — 2026-04-16

Bug Fixes & Improvements

• Fixed background download handling for AI models
• Improved reliability when downloading models in the background
• Enhanced system integration for better performance

Thank you for using DeviceAI! Your privacy-first AI assistant continues to run entirely on your device.

### 1.0.2 — 2026-04-07

DeviceAI 1.0.2
  • Download progress indicators — see real-time progress for model and vision projector downloads
  • Error messages — clearer feedback when something goes wrong during chat generation

### 1.0 — 2026-03-16

No release notes.

## More apps by Evan Yeoh

- [LookGenie](https://appshunter.io/ios/app/lookgenie/id6743811444)
- [SayLess LLC](https://appshunter.io/ios/app/sayless-llc/id6745801229)
- [Thinkr](https://appshunter.io/ios/app/thinkr/id6746683386)
- [TabbyTrip](https://appshunter.io/ios/app/tabbytrip/id6749788264)
- [Habitr](https://appshunter.io/ios/app/habitr/id6752904810)
- [Naturalr](https://appshunter.io/ios/app/naturalr/id6757312825)

All apps by Evan Yeoh: https://appshunter.io/developer/873959340

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-22.*