# Decibels Meter vs Sound Meter dB

The clearest difference is in-app purchases: Decibels Meter at none against Sound Meter dB's 1. Decibels Meter also leads on ads (none vs shown) and update cadence (every 9 days vs every 4 months). On price, rating, ratings volume and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Decibels Meter against 5.0 for Sound Meter dB. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Decibels Meter ships an update every 9 days, Sound Meter dB every 4 months. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Decibels Meter | Sound Meter dB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/decibels-meter/id6755508693/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sound-meter-db/id6759272884/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 4 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 27 MB | 56 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [剑 罗](https://appshunter.io/developer/1854272181) | [Nelson Lai](https://appshunter.io/developer/1477911199) |

## What reviewers say

### Decibels Meter

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

Monitor real-time decibel levels at concerts and festivals. Capture moments with watermarked photos and receive alerts for potentially harmful sound levels to protect your hearing.

**Highlights:** Real-time decibel monitoring, Watermark camera for concert photos, Hearing protection alerts, Sound pressure level measurement, Venue sound terminology

**Features:** macOS Compatibility

**In-app purchases:** none


### Sound Meter dB

[App page](https://appshunter.io/ios/app/sound-meter-db/id6759272884)

Transform your phone into a decibel meter and noise detector. It provides live dB readings, tracks noise history, offers safe exposure guidance, and includes a hearing test and frequency analyzer. Features like night mode and daily noise dose tracking help you understand your sound environment.

**Highlights:** Live decibel (dB) readings, Noise history graph, Safe exposure guidance, Night mode noise logging, Hearing test, Frequency analyzer (PRO), PDF reports and noise diary (PRO)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sound Meter dB Pro | $4.99 | one-time |


## Frequently asked questions

### Is Decibels Meter free?

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

### Is Sound Meter dB free?

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

### Which has better reviews, Decibels Meter or Sound Meter dB?

Decibels Meter and Sound Meter dB are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Decibels Meter or Sound Meter dB have ads?

Sound Meter dB shows ads; Decibels Meter does not.

### Which is updated more often, Decibels Meter or Sound Meter dB?

Decibels Meter ships an update every 9 days, and Sound Meter dB every 4 months. Most recently, Decibels Meter was updated on November 5, 2026 and Sound Meter dB on November 6, 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.*