# OnDevice: Local AI Studio — Language & Visual & Voice

> On-device AI workbench for iPhone running open-source language and vision models locally. (iPhone/iPad app by MESUT CAN YAGCI.)

- Source: https://appshunter.io/ios/app/ondevice-local-ai-studio/id6770114399 (this page in markdown: same URL + `.md`)
- Developer: [MESUT CAN YAGCI](https://appshunter.io/developer/1878989701)
- Category: Developer Tools, Productivity
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 17+
- Requires: iOS 18.0 · 194 MB
- Languages: American English
- Released: 2026-05-20
- Data updated: 2026-10-14
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ondevice-local-ai-studio/id6770114399/reviews.md

## What is OnDevice?

OnDevice is a local-first AI studio for iPhone. Run compatible language, vision, speech, and image models on your device. Browse models and choose what to download. Model size, memory use, and speed depend on your hardware.

CHAT AND CREATE
Ask questions, write, work with code, save snippets, and export conversations. Use camera or photo input with a compatible vision model, or use built-in OCR without downloading a vision model. Voice conversations use local Apple speech by default, with optional downloadable neural voices. Compatible image models support local image generation, which can be restricted with a parental PIN.

YOU CHOOSE THE CONNECTIONS
Local inference uses installed models. Network features are optional: model discovery and downloads, web search, paired Mac tools, a local API, and iCloud sync. Web providers may receive the queries or content you choose to send and may require their own API account. No app account is required for local use; there is no analytics SDK.

REQUIREMENTS
Requires iOS 18 or later. Downloadable models need storage and sufficient available memory. The app may pause or refuse heavy workloads when the device is too hot or memory is low. Model compatibility and performance vary by device.

## Key features

- On-device LLM and VLM execution
- Live camera captioning
- Hands-free voice conversation
- Code assistant with multiple models
- Document scanner and live OCR
- Model benchmarking and A/B comparison
- Mac pairing for inference server


## Frequently asked questions about OnDevice

### What is On Device : Local AI Studio?

On Device : Local AI Studio is an AI workbench for iPhone that runs open-source language and vision models entirely on your device. It offers features like live camera captioning, voice conversation, and code assistance without needing servers or API keys.

### Does On Device : Local AI Studio have ads?

No, On Device : Local AI Studio is ad-free. The app is designed with privacy in mind, and it does not contain any advertisements.

### What models can I use with On Device : Local AI Studio?

You can choose from models like Qwen 2.5 Coder, Llama 3.2, Phi-3.5, Gemma 2, and Qwen3, among dozens of others available on HuggingFace. The app automatically selects a model that fits your device's RAM.

### How does On Device : Local AI Studio ensure privacy?

All models run on the device, meaning your prompts never leave your phone. It features a network-activity indicator for outbound requests (only for model downloads), at-rest encryption for conversations, and a one-tap option to wipe all on-device data.

### What are the system requirements for On Device : Local AI Studio?

The app requires iOS 18.0 or later and is recommended for iPhone 12 or newer. A Wi-Fi connection is recommended for the initial model download, which can be around 1.5 GB minimum.

### Can I use On Device : Local AI Studio with my Mac?

Yes, the 'Mac Bridge' feature allows you to pair your Mac and use your iPhone as an MLX inference server, enabling you to leverage the on-device AI capabilities from your computer.

### How does On Device : Local AI Studio handle device performance?

The app is optimized for your device, with first-launch auto-selection of models based on your iPhone's tier. It also includes thermal awareness to manage response length and cancels in-flight Metal work when the app backgrounds to prevent iOS from terminating it.

### What is the update frequency for On Device : Local AI Studio?

The latest version is 2.9, and the app was last updated on 2026-07-01. This indicates a relatively active development cycle for the application.

## Version history (last 5 releases)

### 3.3 — 2026-10-12

Improved Share extension hand-offs, faster startup, clearer model download and privacy information, and more accessible legal and parental-control screens. This update also improves local data reset and model dependency reliability.

### 3.2.4 — 2026-07-27

NEW
• Attached images now work with every assistant model. Multimodal models read pixels directly; text-only models use the bundled SmolVLM2-500M on-device visual bridge.
• Added persistent per-model generation settings, while app defaults remain the starting point.
• Added an explicit default assistant model. New chats use it, while each existing conversation remembers its own selected model.
• Added whole-conversation sharing with a clean chronological transcript.
• Assistant replies now show tokens/second and generation time with clear icons.

IMPROVED
• Fixed the keyboard-open composer conflict: completed answers no longer show through the input controls, and the text field is clearly separated from the action row.
• Fixed conversation model switching reverting to the saved default instead of loading the model selected for that conversation.
• Fixed valid community models such as Jackrong Qwen3.5 appearing in the chat picker but missing from the Models tab and Downloaded-only inventory.
• Fixed Local API requests from browsers and agent clients getting stuck at “Generating.” Web preflight, streaming event framing, graceful completion, and tool-call decision timing are now handled correctly.
• Conversation model switching now shows every valid downloaded assistant and links to Models when none are installed.
• Expanded completed-response spacing repair for image descriptions and product details.
• Fixed a case where a text-only model could show a blank answer immediately after SmolVLM2 analyzed an attached image.
• The composer hides while a reply is generating and returns without covering the completed answer, footer, or quick actions.
• Completed replies keep compact typography and clearer Markdown spacing.
• Reasoning streams live again while supported models are thinking.
• Long tool cards remain bounded and no longer make the conversation disappear.
• Conversation context is preserved more reliably across short follow-up replies.

Everything continues to run privately on your device.

### 3.2.3 — 2026-07-24

Turn your iPhone into a private local AI server for computers on your network.

NEW
• OpenAI-compatible chat completions and model-list endpoints.
• Ollama-compatible chat, generate, and model-list endpoints.
• A configurable LAN server port with copyable connection URLs.
• Bearer-key authentication with secure key storage, reveal, copy, and rotation controls.
• Streaming and non-streaming responses using the language model already loaded on your device.
• Linux-friendly setup instructions and ready-to-copy curl examples.

IMPROVED
• The Mac Bridge remains available with its existing encrypted pairing workflow.
• Clearer server status, network-address handling, lifecycle behavior, and error messages.

The local API server is disabled by default and intended for trusted networks while the app is in the foreground.

### 3.2.2 — 2026-07-17

Lens now feels more at home on iPhone.

NEW
• Added support for the Bonsai 8B and 27B EXT series for more capable on-device assistance.
• A redesigned Liquid Glass Lens experience keeps the camera front and center.
• A compact model picker makes on-device readiness easier to understand.
• Ask, Translate, Scan, and Solve now have clearer modes and subtle visual accents.
• New capture, scanning, and result animations provide better processing feedback.
• Lens answers are easier to read, with improved hierarchy and streamlined actions.
• Accessibility improvements include larger controls, Dynamic Type, VoiceOver labels, Reduce Motion, and increased-contrast support.


Everything continues to run entirely on your device — no account, no servers.

### 3.2.1 — 2026-07-13

A fresh, brighter interface for both Light and Dark Mode.

• New Liquid Glass surfaces on iOS 26 and later
• Cleaner backgrounds with improved contrast and readability
• Refined Home, Chat, Voice, and action controls
• Polished translucent materials on earlier iOS versions

Your private AI workflow remains fully on-device.

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## Related topics

[on-device](https://appshunter.io/ios/topics/on-device) · [local ai studio](https://appshunter.io/ios/topics/local-ai-studio)

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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 2026-10-14.*