# ChatFile vs On‑Device AI

The clearest difference is rating: ChatFile at 5.0 against On‑Device AI's 4.4. ChatFile also leads on iOS requirement (16.0 vs 18.0). On‑Device AI's advantage is ratings volume (162 vs 1) and review sentiment (64% vs 50%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. ChatFile sells 2 in-app purchases, starting at $7.99 per month and On‑Device AI sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ChatFile holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: On‑Device AI has 162 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 50% of ChatFile's written reviews are positive against 64% of On‑Device AI's, so the app with the better star average is not the one people write more warmly about.

ChatFile ships an update monthly, On‑Device AI fortnightly. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | ChatFile | On‑Device AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chatfile/id6467875546/reviews)** | [4.4 (162 ratings)](https://appshunter.io/ios/app/ondevice-aiprivate-workspace/id6497060890/reviews) |
| Number of ratings | 1 | **162** |
| Positive reviews | 50.0% of reviews | **63.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 38 MB | 1.8 GB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 17+ |
| Developer | [飞 杨](https://appshunter.io/developer/1493121831) | [Zijie Deng](https://appshunter.io/developer/1070117038) |

## What reviewers say

### ChatFile

[App page](https://appshunter.io/ios/app/chatfile/id6467875546)

Engage in natural conversations with your documents using advanced AI. Supports a wide range of file types, including PDFs, Word, PPT, and e-books, for enhanced productivity and learning.

**Highlights:** AI-powered document interaction, Supports PDF, Word, PPT, CSV, XML, EPUB, Natural language processing, Seamless data synchronization, Intuitive native app experience

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $7.99 | per month |
| Premium | $49.99 | per year |


### On‑Device AI

[App page](https://appshunter.io/ios/app/ondevice-aiprivate-workspace/id6497060890)

Transform your device into a private AI assistant for meetings and complex tasks. Features include speaker diarization, live transcription, and specialized subagents for research, analysis, and writing. Control your AI via messaging apps, with options for 100% offline processing or cloud connectivity.

**Highlights:** Speaker Diarization for meeting transcripts, Real-time live transcription, Natural AI speech generation, Deploy specialized AI subagents, AI-powered web browser automation, Control AI via messaging apps, 100% offline processing option

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Member Subscription | $3.99 | per month |
| Pro Member Subscription | $34.99 | per year |
| Lifetime Pro Member | $49.99 | one-time |
| Lifetime Pro Member | $99.99 | one-time |

**What reviewers like**

- 🚀 Game-changing AI assistant
- 🔍 Powerful search functionality
- 👍 Customizable and versatile
- 🌐 Seamless multi-device experience
- 💡 Innovative character-based interactions

**What reviewers complain about**

- 🐛 Crashes on larger models
- 🔋 Heating issues on some devices
- 🔍 Slow and unreliable web search
- 💻 Buggy on macOS

**Reported bugs**

- Crashes on startup
- Model selection issues
- Inability to copy generated text

**Requested features**

- Automated multi-character conversations
- Character set saving and syncing
- Streamlined search integration
- UI optimization for icons
- Remote endpoint support for multi-agents


## Frequently asked questions

### Is ChatFile free?

ChatFile is free to download, with in-app purchases available.

### Is On‑Device AI free?

On‑Device AI is free to download, with in-app purchases available.

### Which has better reviews, ChatFile or On‑Device AI?

ChatFile is rated higher. ChatFile averages 5.0 out of 5 from 1 ratings, while On‑Device AI averages 4.4 from 162 ratings.

### Do ChatFile or On‑Device AI have ads?

Neither ChatFile nor On‑Device AI shows ads.

### Which is updated more often, ChatFile or On‑Device AI?

ChatFile ships an update monthly, and On‑Device AI fortnightly. Most recently, ChatFile was updated on October 16, 2026 and On‑Device AI on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*