# ChatPro4 vs Dr.ID(AZ)

The clearest difference is in-app purchases: Dr.ID(AZ) at none against ChatPro4's 3. Dr.ID(AZ) also leads on ads (none vs shown) and update cadence (weekly vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. ChatPro4 sells 3 in-app purchases, starting at $4.99 per 7 days. Dr.ID(AZ) asks for nothing beyond the download.

ChatPro4 ships an update every 3 weeks, Dr.ID(AZ) weekly. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ChatPro4 | Dr.ID(AZ) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chatpro4-ai-chatbot/id6472479300/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 2 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Qijie Information](https://appshunter.io/developer/1717060398) | [Taiwan SECOM Company LTD.](https://appshunter.io/developer/439847914) |

## What reviewers say

### ChatPro4

[App page](https://appshunter.io/ios/app/chatpro4-ai-chatbot/id6472479300)

Engage in natural conversations with an AI assistant for advice, information, and creative tasks. It offers writing assistance, translation, planning, and programming help, powered by an advanced AI model with vision and speech-to-text capabilities.

**Highlights:** Advanced AI model (4.0), Vision modeling for picture conversations, Speech-to-text for efficiency, Streaming output for reduced waiting, Role-playing and dialog scenarios, Contextualization and multi-line switching

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plus | $4.99 | per 7 days |
| Monthly Plus | $11.90 | per month |
| Annual Plus | $89.99 | per year |


### Dr.ID(AZ)

[App page](https://appshunter.io/ios/app/dridaz/id6742527102)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ChatPro4 free?

ChatPro4 is free to download, with in-app purchases available.

### Is Dr.ID(AZ) free?

Dr.ID(AZ) is free to download, with no in-app purchases.

### Do ChatPro4 or Dr.ID(AZ) have ads?

ChatPro4 shows ads; Dr.ID(AZ) does not.

### Which is updated more often, ChatPro4 or Dr.ID(AZ)?

ChatPro4 ships an update every 3 weeks, and Dr.ID(AZ) weekly. Most recently, ChatPro4 was updated on October 1, 2026 and Dr.ID(AZ) on October 10, 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.*