# BrainOpen vs 小甜包

The clearest difference is in-app purchases: 小甜包 at none against BrainOpen's 1. 小甜包 also leads on update cadence (every 6 days vs every 18 months). BrainOpen's advantage is iOS requirement (13.0 vs 15.5). On price, ads and device support there is nothing between them.

Both are free to download. BrainOpen sells 1 in-app purchase, starting at $3.99 per month. 小甜包 asks for nothing beyond the download.

BrainOpen ships an update every 18 months, 小甜包 every 6 days. The most recent releases landed on September 14, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | BrainOpen | 小甜包 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 6 days** |
| Size | 113 MB | 76 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [鞯 赵](https://appshunter.io/developer/1567856103) | [Xiamen Kuaile Xiaotian Intelligence Technology Co., Ltd.](https://appshunter.io/developer/1677484995) |

## What reviewers say

### BrainOpen

[App page](https://appshunter.io/ios/app/brainopen/id1624322578)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Monthly Card-Unlimited Chat | $3.99 | per month |


### 小甜包

[App page](https://appshunter.io/ios/app/aitolan/id6740111104)

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

**In-app purchases:** none


## Frequently asked questions

### Is BrainOpen free?

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

### Is 小甜包 free?

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

### Do BrainOpen or 小甜包 have ads?

Neither BrainOpen nor 小甜包 shows ads.

### Which is updated more often, BrainOpen or 小甜包?

BrainOpen ships an update every 18 months, and 小甜包 every 6 days. Most recently, BrainOpen was updated on September 14, 2026 and 小甜包 on September 20, 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.*