# Co vs DDchat AI

The clearest difference is in-app purchases: DDchat AI at none against Co's 3. DDchat AI also leads on update cadence (every 3 days vs weekly) and iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Co sells 3 in-app purchases, starting at $3.99 per 7 days. DDchat AI asks for nothing beyond the download.

Co ships an update weekly, DDchat AI every 3 days. The most recent releases landed on August 22, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Co | DDchat AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/co-work-ai-agent-assistant/id6757811698/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 51 MB | 11 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [晨越 唐](https://appshunter.io/developer/1861360757) | [俊华 乔](https://appshunter.io/developer/1896311102) |

## What reviewers say

### Co

[App page](https://appshunter.io/ios/app/co-work-ai-agent-assistant/id6757811698)

This AI-powered workspace acts as your intelligent assistant, streamlining tasks and boosting efficiency. Engage in natural conversations, generate content, organize information, and solve problems within a single, intuitive interface.

**Highlights:** AI Smart Chat, AI Writing and Content Generation, Productivity and Work Assistance, Clean and Efficient Interface, All-in-One AI Tools

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| weekly plan | $3.99 | per 7 days |
| yearly_plan | $39.99 | per year |
| yearly_plan_fullprice | $39.99 | per year |


### 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


## Frequently asked questions

### Is Co free?

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

### Is DDchat AI free?

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

### Do Co or DDchat AI have ads?

Neither Co nor DDchat AI shows ads.

### Which is updated more often, Co or DDchat AI?

Co ships an update weekly, and DDchat AI every 3 days. Most recently, Co was updated on August 22, 2026 and DDchat AI on September 12, 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.*