# 耐材之窗 vs Box Protector

The clearest difference is iOS requirement: 耐材之窗 at 13.0 against Box Protector'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.

耐材之窗 ships an update every 6 weeks, Box Protector monthly. The most recent releases landed on September 8, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | 耐材之窗 | Box Protector |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 44 MB | 27 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [唐山银耐联电子商务有限公司](https://appshunter.io/developer/1381056002) | [海波 胡](https://appshunter.io/developer/6776141528) |

## What reviewers say

### 耐材之窗

[App page](https://appshunter.io/ios/app/id1179647050)

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

**In-app purchases:** none


### Box Protector

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

**In-app purchases:** none


## Frequently asked questions

### Is 耐材之窗 free?

耐材之窗 is free to download, with no in-app purchases.

### Is Box Protector free?

Box Protector is free to download, with no in-app purchases.

### Do 耐材之窗 or Box Protector have ads?

Neither 耐材之窗 nor Box Protector shows ads.

### Which is updated more often, 耐材之窗 or Box Protector?

耐材之窗 ships an update every 6 weeks, and Box Protector monthly. Most recently, 耐材之窗 was updated on September 8, 2026 and Box Protector on September 19, 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.*