# DDchat AI vs OpenChat Pro

The clearest difference is in-app purchases: DDchat AI at none against OpenChat Pro's 1. OpenChat Pro's advantage is iOS requirement (18.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. OpenChat Pro sells 1 one-off in-app purchase. DDchat AI asks for nothing beyond the download.

## The numbers

| Metric | DDchat AI | OpenChat Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ddchat-ai/id6766894679/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Monetization | Paid | — |
| Size | 11 MB | 16 MB |
| Requires iOS | 26.0 | **18.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [俊华 乔](https://appshunter.io/developer/1896311102) | [俊 王](https://appshunter.io/developer/1593314041) |

## What reviewers say

### DDchat AI

[App page](https://appshunter.io/ios/app/ddchat-ai/id6766894679)

A native iOS AI chat client offering a polished and fluid user experience. It supports multiple AI models and protocols, with advanced features like visualized chain-of-thought and task-specific assistants. All data remains on your device for enhanced privacy.

**Highlights:** Native iOS feel with fluid animations, Supports Chat Completions and Anthropic protocols, Automatic model capability detection, Visualized chain-of-thought reasoning, Task-specific AI assistants, Inline HTML rendering with Markdown support, Privacy-first, zero data upload

**Features:** macOS Compatibility

**In-app purchases:** none


### OpenChat Pro

[App page](https://appshunter.io/ios/app/openchat-pro/id6813100017)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenChat Pro | $9.99 | one-time |


## Frequently asked questions

### Is DDchat AI free?

DDchat AI is free to download, with no in-app purchases.

### Is OpenChat Pro free?

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

### Do DDchat AI or OpenChat Pro have ads?

Neither DDchat AI nor OpenChat Pro shows ads.

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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.*