# DeepChat vs On‑Device AI

The clearest difference is rating: On‑Device AI at 4.4 against DeepChat's 4.0. On‑Device AI also leads on ratings volume (163 vs 20). DeepChat's advantage is update cadence (every 4 days vs fortnightly) and iOS requirement (16.0 vs 18.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. DeepChat sells 4 in-app purchases, starting at $4.99 per 7 days 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.

On‑Device AI holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: On‑Device AI has 163 ratings behind it against 20, so its average is the more settled of the two. Written reviews point the same way: 62% of DeepChat's written reviews are positive against 64% of On‑Device AI's.

DeepChat ships an update every 4 days, On‑Device AI fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | DeepChat | On‑Device AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (20 ratings)](https://appshunter.io/ios/app/deepchat-ai-assistant/id1661529295/reviews) | **[4.4 (163 ratings)](https://appshunter.io/ios/app/ondevice-aiprivate-workspace/id6497060890/reviews)** |
| Number of ratings | 20 | **163** |
| Positive reviews | 61.9% of reviews | **63.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | Free with in-app purchases | 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

### DeepChat

[App page](https://appshunter.io/ios/app/deepchat-ai-assistant/id1661529295)

This AI assistant app integrates over 100 leading AI models for chat, writing, coding, translation, and visual understanding. It offers web-connected search, thought process transparency, and organized conversations with automatic sync across devices.

**Highlights:** 100 AI models in one app, Web-connected search, Visual understanding, Thought process transparency, Organized conversations, Automatic sync across devices, Chat with PDFs

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per 7 days |
| Premium | $9.99 | per month |
| Premium | $69.99 | per year |
| Compute Points Package | $19.99 | one-time |


### 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 DeepChat free?

DeepChat 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, DeepChat or On‑Device AI?

On‑Device AI is rated higher. DeepChat averages 4.0 out of 5 from 20 ratings, while On‑Device AI averages 4.4 from 163 ratings.

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

Neither DeepChat nor On‑Device AI shows ads.

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

DeepChat ships an update every 4 days, and On‑Device AI fortnightly. Most recently, DeepChat was updated on November 3, 2026 and On‑Device AI on October 30, 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.*