# ChatAI聊天 vs 3A思维导图

The clearest difference is in-app purchases: ChatAI聊天 at none against 3A思维导图's 3. ChatAI聊天 also leads on iOS requirement (10.1 vs 12.0). 3A思维导图's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. 3A思维导图 sells 3 one-off in-app purchases. ChatAI聊天 asks for nothing beyond the download.

ChatAI聊天 ships an update every 2 months, 3A思维导图 monthly. The most recent releases landed on October 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ChatAI聊天 | 3A思维导图 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Monthly** |
| Size | 66 MB | 79 MB |
| Requires iOS | **10.1** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [新 张](https://appshunter.io/developer/766514344) | [燕锋 林](https://appshunter.io/developer/691726316) |

## What reviewers say

### ChatAI聊天

[App page](https://appshunter.io/ios/app/chatai/id767216349)

**Features:** macOS Compatibility

**In-app purchases:** none


### 3A思维导图

[App page](https://appshunter.io/ios/app/3a-aiai/id770595610)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 会员年费 | $59.99 | one-time |
| VIP（企业） | $79.99 | one-time |
| 超级会员年费 | $89.99 | one-time |


## Frequently asked questions

### Is ChatAI聊天 free?

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

### Is 3A思维导图 free?

3A思维导图 is free to download, with in-app purchases available.

### Do ChatAI聊天 or 3A思维导图 have ads?

ChatAI聊天 shows ads; 3A思维导图 does not.

### Which is updated more often, ChatAI聊天 or 3A思维导图?

ChatAI聊天 ships an update every 2 months, and 3A思维导图 monthly. Most recently, ChatAI聊天 was updated on October 26, 2026 and 3A思维导图 on September 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.*