# 库管通 vs 护单宝

The clearest difference is update cadence: 护单宝 at every 5 days against 库管通's fortnightly. 护单宝 also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, 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.

库管通 ships an update fortnightly, 护单宝 every 5 days. The most recent releases landed on October 15, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | 库管通 | 护单宝 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Size | 63 MB | 33 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


### 护单宝

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

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

**In-app purchases:** none


## Frequently asked questions

### Is 库管通 free?

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

### Is 护单宝 free?

护单宝 is free to download, with no in-app purchases.

### Do 库管通 or 护单宝 have ads?

Neither 库管通 nor 护单宝 shows ads.

### Which is updated more often, 库管通 or 护单宝?

库管通 ships an update fortnightly, and 护单宝 every 5 days. Most recently, 库管通 was updated on October 15, 2026 and 护单宝 on October 23, 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.*