# 智小惠 vs ExternalBrain外脑

The clearest difference is iOS requirement: 智小惠 at 13.0 against ExternalBrain外脑's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

智小惠 ships an update every 3 weeks, ExternalBrain外脑 every 5 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 智小惠 | ExternalBrain外脑 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 148 MB | 193 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 9+ |
| Developer | [Beijing Shendu Space Technology Co.,Ltd.](https://appshunter.io/developer/1609858687) | [Shenzhen External Brain Technology Co., Ltd.](https://appshunter.io/developer/1563408639) |

## What reviewers say

### 智小惠

[App page](https://appshunter.io/ios/app/id1609858505)

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

**In-app purchases:** none


### ExternalBrain外脑

[App page](https://appshunter.io/ios/app/externalbrain/id6670423733)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 智小惠 free?

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

### Is ExternalBrain外脑 free?

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

### Do 智小惠 or ExternalBrain外脑 have ads?

Neither 智小惠 nor ExternalBrain外脑 shows ads.

### Which is updated more often, 智小惠 or ExternalBrain外脑?

智小惠 ships an update every 3 weeks, and ExternalBrain外脑 every 5 weeks. Most recently, 智小惠 was updated on November 3, 2026 and ExternalBrain外脑 on November 4, 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.*