# SonoMeter: Decibel Meter — Sound & Noise Level, dB Reader

> Sound & Noise Level, dB Reader (iPhone/iPad app by Raphael Goupille.)

- Source: https://appshunter.io/ios/app/sonometer-decibel-meter/id6745488403 (this page in markdown: same URL + `.md`)
- Developer: [Raphael Goupille](https://appshunter.io/developer/1650597250)
- Category: Utilities, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16 · 35 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Chinese (Simplified, China), European Spanish
- Released: 2025-06-03
- Data updated: 2026-10-24

## What is SonoMeter?

Measure noise in decibels, understand it and keep a record, straight from your iPhone.

SonoMeter turns your iPhone into a sound level meter: real-time dB readings with A, C or Z weighting, a clear risk scale, and the tools to document noise from neighbors, traffic, work or concerts.

MEASURE
• Real-time sound level in dB(A), dB(C) or dB(Z)
• LAeq, Max and measurement time at a glance
• Fast, Slow and Impulse response
• Four views: real-time chart, 1/3-octave spectrum, needle gauge and a fun meter
• Decibel scale with everyday examples and safe daily exposure times

ANALYZE
• Tap the chart for a live analysis: level distribution, L10, L50 and L90
• Level over time, noise dose (NIOSH, OSHA) and average spectrum with Premium

DOCUMENT
• Save sessions with timeline, location and notes
• Export a multi-page PDF report
• Record videos with the decibels on screen, including LAeq, duration and place
• Noise alerts above a threshold, with a log of every exceedance
• Continuous listening keeps measuring with the screen locked

SLEEP
• White, pink or brown noise with a sleep timer and lock-screen controls

ALSO
• Home Screen widget and Live Activity
• Available in English, French, German, Spanish, Italian, Japanese and Chinese
• Your measurements stay on your iPhone

ABOUT ACCURACY
iPhone microphones differ from one model to another. SonoMeter applies a calibration for each iPhone model and lets you fine-tune it against a reference sound level meter. Readings are indicative and do not replace a certified class 1 or class 2 sound level meter for legal measurements.

PREMIUM
Some features require SonoMeter Premium, available as a one-time purchase or as a subscription. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel them in your Apple ID settings.

Terms of Use: https://fabulastudio.net/sonometre/cgu
Privacy Policy: https://fabulastudio.net/sonometre/confidentialite

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Annual subscription | $24.99 | per year |
| Weekly Subscription | $1.99 | per 7 days |
| Monthly subscription | $5.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Lifetime | $6.99 | one-time |


## Is SonoMeter safe?

Not enough ratings yet to assess SonoMeter.

## Is SonoMeter legit?

SonoMeter: Decibel Meter appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for SonoMeter is 78 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.2 — 2026-10-22

What's new in 1.2

• White noise (Premium): white, pink or brown noise with a sleep timer, controls on the lock screen
• Analysis: tap the chart to see the level distribution and L10/L50/L90; level over time, noise dose and average spectrum with Premium
• Videos: Leq, duration and location now appear on the video, which you can add to your sessions
• Continuous listening (formerly Night mode): keep measuring with the screen locked
• Noise alerts now vibrate at every exceedance
• Clearer main screen and a redesigned decibel scale
• Fixes and improvements

### 1.1 — 2026-05-26

Use the widget to view the latest measurements.

### 1.0 — 2025-06-03

No release notes.

## Apps similar to SonoMeter

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sound Meter Master](https://appshunter.io/ios/app/sound-meter-master/id6745103523) | — | Free | Utilities |
| [Cuspart: dB Meter](https://appshunter.io/ios/app/cuspart-db-meter/id6477875540) | — | Free | Utilities |
| [dB Meter - Real-Time Alerts](https://appshunter.io/ios/app/db-meter-real-time-alerts/id6743526896) | 1.0 (1) | Free | Utilities |
| [Decibel Meter Sound Level dB](https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1609178369) | 4.4 (24) | Free | Utilities |
| [Decibel - dB Sound Level Meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id6443760208) | 4.6 (37) | Free | Utilities |
| [Decibel Meter - Sound Analyzer](https://appshunter.io/ios/app/decibel-meter-sound-analyzer/id1579747105) | 3.5 (55) | Free | Utilities |

## More apps by Raphael Goupille

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All apps by Raphael Goupille: https://appshunter.io/developer/1650597250

## Related topics

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*