# MOON vs 分贝测试仪

The clearest difference is ads: 分贝测试仪 at none against MOON's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. MOON sells 1 in-app purchase, starting at $29.99 per year and 分贝测试仪 sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

MOON ships an update every 2 days, 分贝测试仪 every 4 days. The most recent releases landed on September 18, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | MOON | 分贝测试仪 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 129 MB | 7 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [淞阁 于](https://appshunter.io/developer/1717419442) | [成 武](https://appshunter.io/developer/1727617638) |

## What reviewers say

### MOON

[App page](https://appshunter.io/ios/app/moon-and/id6476828985)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 年度会员 | $29.99 | per year |


### 分贝测试仪

[App page](https://appshunter.io/ios/app/and/id6476977596)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $9.99 | per month |
| 季度会员 | $29.99 | per 3 months |
| 年度会员 | $39.99 | per year |


## Frequently asked questions

### Is MOON free?

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

### Is 分贝测试仪 free?

分贝测试仪 is free to download, with in-app purchases available.

### Do MOON or 分贝测试仪 have ads?

MOON shows ads; 分贝测试仪 does not.

### Which is updated more often, MOON or 分贝测试仪?

MOON ships an update every 2 days, and 分贝测试仪 every 4 days. Most recently, MOON was updated on September 18, 2026 and 分贝测试仪 on September 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*