# 库管通 vs Box Protector

The clearest difference is in-app purchases: 库管通 at none against Box Protector's 2. Box Protector's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Box Protector sells 2 in-app purchases, starting at $0.99 per month. 库管通 asks for nothing beyond the download.

库管通 ships an update fortnightly, Box Protector every 9 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 库管通 | Box Protector |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Size | 63 MB | 74 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [北京中科商软软件有限公司](https://appshunter.io/developer/1053789348) | [海波 胡](https://appshunter.io/developer/6776141528) |

## What reviewers say

### 库管通

[App page](https://appshunter.io/ios/app/id6736728593)

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

**In-app purchases:** none


### Box Protector

[App page](https://appshunter.io/ios/app/box-protector/id6776218685)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 护单宝专业版月付会员 | $0.99 | per month |
| 护单宝专业版年付会员 | $9.99 | per year |


## Frequently asked questions

### Is 库管通 free?

库管通 is free to download, with no in-app purchases.

### Is Box Protector free?

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

### Do 库管通 or Box Protector have ads?

Neither 库管通 nor Box Protector shows ads.

### Which is updated more often, 库管通 or Box Protector?

库管通 ships an update fortnightly, and Box Protector every 9 days. Most recently, 库管通 was updated on November 4, 2026 and Box Protector on October 31, 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.*