# 分贝测试仪 vs 一步一步

The clearest difference is in-app purchases: 一步一步 at none against 分贝测试仪's 3. On price, ads, device support 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. 一步一步 asks for nothing beyond the download.

## The numbers

| Metric | 分贝测试仪 | 一步一步 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Size | 7 MB | 23 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [成 武](https://appshunter.io/developer/1727617638) | [北京铭驰信通科技有限公司](https://appshunter.io/developer/1792182807) |

## 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 |


### 一步一步

[App page](https://appshunter.io/ios/app/id6740911253)

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

**In-app purchases:** none


## 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 一步一步 free?

一步一步 is free to download, with no in-app purchases.

### Do 分贝测试仪 or 一步一步 have ads?

Neither 分贝测试仪 nor 一步一步 shows ads.

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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.*