# Decibels Meter vs Decibel Meter

The clearest difference is in-app purchases: Decibels Meter at none against Decibel Meter's 1. Decibels Meter also leads on update cadence (every 9 days vs every 5 weeks) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Decibel Meter sells 1 one-off in-app purchase. Decibels Meter asks for nothing beyond the download.

Decibels Meter ships an update every 9 days, Decibel Meter every 5 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Decibels Meter | Decibel Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/decibels-meter/id6755508693/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 5 weeks |
| Size | 27 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [剑 罗](https://appshunter.io/developer/1854272181) | [博 彭](https://appshunter.io/developer/1293268076) |

## What reviewers say

### Decibels Meter

[App page](https://appshunter.io/ios/app/decibels-meter/id6755508693)

**Features:** macOS Compatibility

**In-app purchases:** none


### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-noisescope/id6760281155)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro永久版 | $1.99 | one-time |


## Frequently asked questions

### Is Decibels Meter free?

Decibels Meter is free to download, with no in-app purchases.

### Is Decibel Meter free?

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

### Do Decibels Meter or Decibel Meter have ads?

Neither Decibels Meter nor Decibel Meter shows ads.

### Which is updated more often, Decibels Meter or Decibel Meter?

Decibels Meter ships an update every 9 days, and Decibel Meter every 5 weeks. Most recently, Decibels Meter was updated on October 24, 2026 and Decibel Meter on October 25, 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.*