# 分贝测试仪 vs 指南针

The clearest difference is device support: 分贝测试仪 at 2 against 指南针's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. 分贝测试仪 sells 3 in-app purchases, starting at $9.99 per month and 指南针 sells 1 in-app purchase, starting at $14.99 per year. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 分贝测试仪 | 指南针 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | Every 4 days | — |
| Size | 7 MB | 14 MB |
| Requires iOS | **13.0** | 14.3 |
| Devices | **iPhone, iPod** | — |
| Age rating | 17+ | 4+ |
| Developer | [成 武](https://appshunter.io/developer/1727617638) | [小娟 韩](https://appshunter.io/developer/1650353060) |

## What reviewers say

### 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 |


### 指南针

[App page](https://appshunter.io/ios/app/gps/id6497792569)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 指南针年度会员 | $14.99 | per year |


## Frequently asked questions

### Is 分贝测试仪 free?

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

### Is 指南针 free?

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

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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.*