# 甲醛儀 vs 甲醛武士

The clearest difference is update cadence: 甲醛武士 at every 3 weeks against 甲醛儀's every 2 months. 甲醛儀's advantage is iOS requirement (9.0 vs 13.0). 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.

甲醛儀 ships an update every 2 months, 甲醛武士 every 3 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 甲醛儀 | 甲醛武士 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id1335277810/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 21 MB | 20 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fitz Inc.](https://appshunter.io/developer/1335277809) | [Linked Heart Technology Limited](https://appshunter.io/developer/1628264367) |

## What reviewers say

### 甲醛儀

[App page](https://appshunter.io/ios/app/id1335277810)

**Features:** macOS Compatibility

**In-app purchases:** none


### 甲醛武士

[App page](https://appshunter.io/ios/app/id6479744059)

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

**In-app purchases:** none


## Frequently asked questions

### Is 甲醛儀 free?

甲醛儀 is free to download, with no in-app purchases.

### Is 甲醛武士 free?

甲醛武士 is free to download, with no in-app purchases.

### Do 甲醛儀 or 甲醛武士 have ads?

Neither 甲醛儀 nor 甲醛武士 shows ads.

### Which is updated more often, 甲醛儀 or 甲醛武士?

甲醛儀 ships an update every 2 months, and 甲醛武士 every 3 weeks. Most recently, 甲醛儀 was updated on November 2, 2026 and 甲醛武士 on November 4, 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.*