On Device AI is your Private Local AI Workspace.|

Chat, voice, listening, and research for iPhone, iPad, Mac, and Apple Vision Pro.

Stop sending your private files, transcripts, and daily work to remote servers by default. Ask questions, organize PDFs, record speaker-labeled meetings, and turn documents and feeds into a listening queue you can take with you. Fast, offline-ready, and private by design.

200+ Local Models Free Custom Imports AI Voice Notes Listen Library & RSS

200+ local models · No account · No analytics · Works offline after model download

On Device AI Mac Chat
On Device AI iPhone Voice Note
On Device AI iPad Library
AI Teams
Offline

Claims You Can Verify

Check the product guides, privacy policy, screenshots, and public app pages behind our claims.

No account, analytics, or telemetry

Local AI processing is designed around device-local storage and processing. See the Privacy Policy.

Documented local workflows

Core workflows have public guides for Knowledge Libraries, Text Notes, AI Search, Voice Notes, and Shortcuts & Automation.

Free download, optional upgrades

Start with local workflows. Pro features and cloud providers are optional, and cloud providers require explicit configuration.

Complete Model Freedom & Control

Built for developers, researchers, and professionals who need native speed, model choice, and true data privacy.

200+ Local Models & 19 Cloud APIs

Never get locked into a single ecosystem. Run Llama, DeepSeek, and Gemma directly on your device with dual GGUF and MLX engines. Need massive reasoning capabilities? Instantly switch to OpenAI, Anthropic, or 19+ other cloud APIs when connected.

Multi-Agent Teams

Orchestrate specialized AI agents that collaborate autonomously. Assign distinct roles and models for complex tasks.

Knowledge Libraries

Your documents, your memory. Import PDFs and notes to create focused contexts. The AI retrieves answers securely locally.

Pure Native Ecosystem

A unified native app optimized for macOS, iOS, iPadOS, and visionOS. Turn your Mac into a private local inference server to run heavy models, then access it securely from your iPhone. No sluggish web wrappers or Electron bloat, just responsive, GPU-accelerated Swift code.

What Can On Device AI Do?

Powerful AI features right on your device, with no network dependency. Say goodbye to privacy concerns.

Chat Flows participant setup on Mac Chat Flows multi-agent result on Mac

Subagents & Workflow Automation

Multiply your productivity. Deploy specialized agents (e.g., Researcher, Analyst, Writer) that consult each other to tackle complex projects simultaneously across your devices.

Learn more
Voice note recording screen on Mac Voice note transcription and diarization on iPhone

Voice Notes & Transcription

Record or import audio to transcribe and summarize meetings directly on your device. Local speaker identification (diarization) automatically labels who said what, giving you clean minutes without sending confidential audio to the cloud.

Learn more
Web search answer with cited results on Mac Tool calling web search workflow on iPad

AI Search & Tools

Ask research questions, get cited answers, and save useful search results to a Knowledge Library for later. Tool calling also lets compatible models use search, page fetch, calculator, memory, and other enabled tools.

Learn more
Text to speech playback controls on Mac Text to speech history screen on Mac

Professional Text-to-Speech

Turn text, documents, or a passage captured from an image into natural speech. Apple voices, Kokoro, and other on-device engines generate expressive audio locally, with no external server requests or bandwidth limits. For queued playback, the Listen Library keeps PDFs, articles, scanned books, and RSS feeds in one Up Next list.

Learn more Listen Library
RSS feed articles ready to read or play on iPhone RSS article reader with sentence highlighting and playback controls on iPhone

Turn Feeds Into a Listening Queue

Follow RSS, Atom, and JSON feeds, filter new articles, and add what matters to Up Next. Read along with sentence highlighting or keep listening through the shared player, with article processing and narration handled on your device.

Explore RSS Feeds See Listen Library
Knowledge Library file analysis view on Mac Knowledge Library AI Chat

Knowledge Libraries, Notes & Files

Collect PDFs, notes, transcripts, saved searches, images, and web captures in project libraries. Then ask AI Chat questions based on the material you chose.

Learn more

Privacy-First Technology

Run leading open-source models physically on your device with complete data sovereignty, zero tracking, and absolute security.

Traditional Cloud AI

Your Data
Cloud Server
AI Response
  • Privacy risk: data leaves your device
  • Limited control over your data
  • Internet connection required

On-Device AI

Your Data
Local AI
Instant Response
  • Private by default: local data stays on your device
  • Fully customizable models and roles
  • Works completely offline

Secure by Design

All processing stays within your physical hardware boundary. No accounts, no telemetry, and zero third-party tracking.

  • Zero Data Leakage

    Your conversations, documents, and voice recordings never leave your device during AI processing.

  • Complete Anonymity

    No accounts required, no telemetry, no usage tracking. You own your data completely.

  • Offline First

    Core features work without internet. Cloud providers are optional and require your explicit consent.

Voice Input (STT)
Local AI Processing
Text & Speech Output (TTS)
External Blocked

Spatial Intelligence on Vision Pro

Immerse yourself in your AI workflows with breathtaking native visionOS support.

Web search tool calling interface on Apple Vision Pro

Available on All Apple Platforms

One app, optimized for every device in your ecosystem.

iOS

iPhone & iPad

  • Voice transcription on the go
  • Siri Shortcuts integration
  • Camera & Vision model support
  • Background recording
  • Home Screen widgets for Listen, Voice Note, Text Note, and Quick Actions

macOS

Apple Silicon Macs

  • Maximum performance & large context
  • Menu bar & global hotkeys
  • IM integration (Discord, Slack, Telegram)
  • Serve as remote inference server
  • Desktop widgets for Listen, notes, and quick actions

visionOS

Apple Vision Pro

  • Immersive AI experience
  • Spatial computing ready
  • Hand gesture controls
  • Private AI in mixed reality
  • Listen Library and RSS Feeds
Download on the App Store

Free download · No ads · Privacy first

Frequently Asked Questions

On Device AI runs 200+ language models (Llama 3, Gemma 3, Qwen 3, DeepSeek, Phi-4, Mistral) directly on your iPhone, iPad, Mac, or Vision Pro using GGUF and MLX inference engines. All processing happens on your device with zero data collection. No internet required for core features.
Yes. Once you download a model, voice transcription, document analysis, AI chat, Knowledge Libraries, vision models, and text-to-speech all work without internet. Cloud AI providers are available as opt-in additions but disabled by default.
200+ models including Llama 3, Gemma 3, Qwen 3, DeepSeek, Phi-4, and Mistral. You can also import custom GGUF models from Hugging Face. The app uses both llama.cpp (GGUF) and MLX inference engines for broad compatibility on Apple Silicon.
You deploy specialized AI agents that collaborate on a single task. A Researcher gathers information, an Analyst evaluates it, a Writer produces the output. Each agent can use a different model and role. The whole workflow runs locally on your device.
iPhone 14 and newer, iPad mini 7th gen and newer, iPad Air 5th gen and newer, iPad Pro 3rd gen and newer, iPad 11th gen and newer, all Apple Silicon Macs, and Apple Vision Pro. Devices with 6GB+ RAM provide optimal performance.
Yes. On Device AI supports 19+ cloud providers including OpenAI, Anthropic Claude, Google Gemini, Groq, OpenRouter, Nvidia, LM Studio, and Ollama. Cloud is off by default and requires your explicit configuration. You can mix local and cloud models in the same conversation.
Project-specific document stores. Import PDFs, notes, transcripts, saved AI Search results, web captures, and images into a Library. AI Chat can answer from the material you choose while local workflows keep files on your device.
The Listen Library turns PDFs, Markdown, text files, readable web articles, and scanned books into a private reading and listening queue. RSS Feeds sits alongside it, so you can follow RSS, Atom, and JSON sources, add articles to Up Next, keep your place, and set a sleep timer at night. Knowledge Libraries remain the place to retrieve document passages into AI Chat.
App Help is a focused help chat backed by the app's built-in guide. Ask in English how a feature or setting works, and it answers using the model you already have active. Help sessions stay in memory and never appear in your saved chats.
The interface supports English plus Dutch, French, German, Italian, Japanese, Spanish, Portuguese, and Traditional Chinese. Widgets follow the language you select in the app. App Help answers in English.
Yes. Local vision models using both MLX and GGUF engines, plus cloud vision APIs as opt-in. Analyze photos, screenshots, diagrams, and documents with OCR text extraction, all processed on your device.
Yes. ChatGPT sends your data to OpenAI's servers for processing. On Device AI runs models directly on your hardware. No data collection, no accounts, no analytics, no telemetry. Your conversations never leave your device during local processing. Cloud-first assistants can offer stronger frontier reasoning, while On Device AI prioritizes local control and offline workflows.
On Device AI runs 200+ models on Apple Silicon Macs with both GGUF and MLX engines. Mac-specific features include menu bar access, global hotkeys, IM integration for Discord/Slack/Telegram, and the ability to serve as a remote inference server for your iPhone and iPad.
Yes. Voice transcription includes speaker diarization, which identifies who said what during meetings, interviews, and conversations. It runs on-device using a Whisper-based speech-to-text engine. No audio is sent externally.
Yes. The Kokoro TTS engine generates natural-sounding speech offline on your device. You can read aloud PDFs, articles, or AI responses without internet. Multiple voice options are available.
GGUF models use llama.cpp and work across a wide range of hardware with broad model compatibility. MLX models are optimized for Apple Silicon and can offer better memory efficiency. On Device AI supports both, so you can pick the right engine for your device and workload.
On Device AI includes IM chatbot integration for Discord, Slack, and Telegram on macOS. Your Mac acts as the inference server, so messages are processed locally on your hardware rather than a cloud server.
On Device AI is free to download. Local workflows can run without an account, and Pro features are optional. Cloud providers are opt-in and may require your own third-party API credentials or provider billing.

Selected App Store Reviews

A few comments from the app’s public review page.

“The fact that you can run AI models locally, with this much precision and functionality, is mind-blowing.”

beats1393

App Store review
View on App Store

“Having access to LLMs offline, when Wi-Fi connectivity isn’t available, is a much appreciated gift.”

sjm49

App Store review
View on App Store

“The ability to make a Shortcut that allows for running an LLM in the background is great.”

MemeMaster’s Play

App Store review
View on App Store

Get in touch

Questions, bug reports, and feature ideas are all welcome.

developer@ondevice-ai.app