# Decibel Meter Sound Level dB vs SonoMeter

The clearest difference is ads: SonoMeter at none against Decibel Meter Sound Level dB's shown. Decibel Meter Sound Level dB's advantage is update cadence (every 3 months vs every 8 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Decibel Meter Sound Level dB sells 4 in-app purchases, starting at $4.99 per 7 days and SonoMeter sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Decibel Meter Sound Level dB ships an update every 3 months, SonoMeter every 8 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Decibel Meter Sound Level dB | SonoMeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (24 ratings)](https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1609178369/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 35 MB |
| Requires iOS | 16.6 | **16** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [汇杭 钟](https://appshunter.io/developer/1481585840) | [Raphael Goupille](https://appshunter.io/developer/1650597250) |

## What reviewers say

### Decibel Meter Sound Level dB

[App page](https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1609178369)

This tool transforms your iPhone into a professional sound level meter. It measures noise levels, tracks daily noise exposure, and can record video with embedded decibel data for evidence. Analyze sound frequencies and generate reports for workplace compliance or noise complaints.

**Highlights:** Professional noise dosimeter, OSHA & NIOSH standards compliance, Video recording with dB overlay, Spectrum analyzer (RTA), PDF report export, Calibration for accuracy, Background measurement mode

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Monthly | $5.99 | per month |
| Premium Yearly | $29.99 | per year |
| Lifetime Premium | $49.99 | one-time |


### SonoMeter

[App page](https://appshunter.io/ios/app/sonometer-decibel-meter/id6745488403)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Monthly subscription | $5.99 | per month |
| Annual subscription | $24.99 | per year |
| Premium Lifetime | $6.99 | one-time |


## Frequently asked questions

### Is Decibel Meter Sound Level dB free?

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

### Is SonoMeter free?

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

### Do Decibel Meter Sound Level dB or SonoMeter have ads?

Decibel Meter Sound Level dB shows ads; SonoMeter does not.

### Which is updated more often, Decibel Meter Sound Level dB or SonoMeter?

Decibel Meter Sound Level dB ships an update every 3 months, and SonoMeter every 8 months. Most recently, Decibel Meter Sound Level dB was updated on October 24, 2026 and SonoMeter 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.*