# 甲醛武士 vs LINK HEART

The clearest difference is update cadence: 甲醛武士 at every 3 weeks against LINK HEART's every 7 months. 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.

甲醛武士 ships an update every 3 weeks, LINK HEART every 7 months. The most recent releases landed on August 13, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 甲醛武士 | LINK HEART |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Size | 20 MB | 103 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Linked Heart Technology Limited](https://appshunter.io/developer/1628264367) | [EMPLOYEASY GROUP LIMITED](https://appshunter.io/developer/1722442715) |

## What reviewers say

### 甲醛武士

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

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

**In-app purchases:** none


### LINK HEART

[App page](https://appshunter.io/ios/app/link-heart/id6739602436)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 甲醛武士 free?

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

### Is LINK HEART free?

LINK HEART is free to download, with no in-app purchases.

### Do 甲醛武士 or LINK HEART have ads?

Neither 甲醛武士 nor LINK HEART shows ads.

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

甲醛武士 ships an update every 3 weeks, and LINK HEART every 7 months. Most recently, 甲醛武士 was updated on August 13, 2026 and LINK HEART on September 10, 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.*