# Dou AI vs CattIA

The clearest difference is in-app purchases: CattIA at none against Dou AI's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Dou AI sells 4 in-app purchases, starting at $4.99 per 7 days. CattIA asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Dou AI | CattIA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/dou-ai-chatbot/id6749772166/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Subscription | — |
| Size | 63 MB | 126 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Eliberty Dev LLC](https://appshunter.io/developer/1832010002) | [EYS Software](https://appshunter.io/developer/1850052959) |

## What reviewers say

### Dou AI

[App page](https://appshunter.io/ios/app/dou-ai-chatbot/id6749772166)

This AI-powered assistant helps users communicate, explore ideas, and complete daily tasks efficiently. It offers natural conversations for writing, summarizing, idea generation, and learning, making advanced AI accessible through an intuitive interface.

**Highlights:** Intelligent AI-powered communication, Idea exploration and brainstorming, Content generation and text improvement, Information retrieval and learning, Natural and context-aware conversations, Intuitive and easy-to-use interface

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Weekly | $4.99 | per 7 days |
| Monthly | $12.99 | per month |
| Yearly | $39.99 | per year |


### CattIA

[App page](https://appshunter.io/ios/app/cattia/id6754784424)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dou AI free?

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

### Is CattIA free?

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

### Do Dou AI or CattIA have ads?

Neither Dou AI nor CattIA shows ads.

### Which is updated more often, Dou AI or CattIA?

Dou AI ships an update monthly, and CattIA monthly. Most recently, Dou AI was updated on October 24, 2026 and CattIA on October 24, 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.*