# Decibel Meter Plus Pro vs 马克一下

The clearest difference is in-app purchases: 马克一下 at none against Decibel Meter Plus Pro's 1. 马克一下 also leads on update cadence (every 3 weeks vs every 2 months). Decibel Meter Plus Pro's advantage is price ($4.99 vs $9.99) and iOS requirement (15.0 vs 26.0). On ads and device support there is nothing between them.

Decibel Meter Plus Pro costs $4.99 and 马克一下 $9.99 up front. Decibel Meter Plus Pro sells 1 one-off in-app purchase. 马克一下 asks for nothing beyond the download.

Decibel Meter Plus Pro ships an update every 2 months, 马克一下 every 3 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Decibel Meter Plus Pro | 马克一下 |
| --- | --- | --- |
| Price | **$4.99** | $9.99 |
| Rating | **[3.7 (81 ratings)](https://appshunter.io/ios/app/decibel-meter-plus-pro/id645214476/reviews)** | — |
| Number of ratings | **81** | — |
| Positive reviews | 52.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 12 MB | 58 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [华芳 张](https://appshunter.io/developer/586041482) | [Beijing Memory Vision Technology Co., Ltd.](https://appshunter.io/developer/1475464439) |

## What reviewers say

### Decibel Meter Plus Pro

[App page](https://appshunter.io/ios/app/decibel-meter-plus-pro/id645214476)

Measure the sound levels around you with this utility app. It displays average, peak, and max values, offers decibel exposure time guidelines, and provides information on noise-induced hearing loss. The app also allows data recording and export for analysis.

**Highlights:** Measure sound levels, Display average, peak, and max values, Decibel exposure time guidelines, Information on noise-induced hearing loss, Record and export data, Calibrate measurements, Universal app support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Reports | $4.99 | one-time |


### 马克一下

[App page](https://appshunter.io/ios/app/id1506732977)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter Plus Pro free?

Decibel Meter Plus Pro costs $4.99, and also offers in-app purchases.

### Is 马克一下 free?

马克一下 costs $9.99, with no in-app purchases.

### Do Decibel Meter Plus Pro or 马克一下 have ads?

Neither Decibel Meter Plus Pro nor 马克一下 shows ads.

### Which is updated more often, Decibel Meter Plus Pro or 马克一下?

Decibel Meter Plus Pro ships an update every 2 months, and 马克一下 every 3 weeks. Most recently, Decibel Meter Plus Pro was updated on October 22, 2026 and 马克一下 on October 24, 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.*