# 向维记录仪 vs 脑洞大开

The clearest difference is update cadence: 脑洞大开 at weekly against 向维记录仪's every 5 months. 向维记录仪's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

向维记录仪 ships an update every 5 months, 脑洞大开 weekly. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 向维记录仪 | 脑洞大开 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Size | 128 MB | 36 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [湘 陈](https://appshunter.io/developer/1702795895) | [振江 牛](https://appshunter.io/developer/1489673670) |

## What reviewers say

### 向维记录仪

[App page](https://appshunter.io/ios/app/id6470650547)

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

**In-app purchases:** none


### 脑洞大开

[App page](https://appshunter.io/ios/app/id6744556026)

**In-app purchases:** none


## Frequently asked questions

### Is 向维记录仪 free?

向维记录仪 is free to download, with no in-app purchases.

### Is 脑洞大开 free?

脑洞大开 is free to download, with no in-app purchases.

### Do 向维记录仪 or 脑洞大开 have ads?

Neither 向维记录仪 nor 脑洞大开 shows ads.

### Which is updated more often, 向维记录仪 or 脑洞大开?

向维记录仪 ships an update every 5 months, and 脑洞大开 weekly. Most recently, 向维记录仪 was updated on October 5, 2026 and 脑洞大开 on October 25, 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.*