# Decibel Meter - Sound Level — Silence and noise level meter

> Silence and noise level meter (iPhone/iPad app by Brais Castro.)

- Source: https://appshunter.io/ios/app/decibel-meter-sound-level/id6741395557 (this page in markdown: same URL + `.md`)
- Developer: [Brais Castro](https://appshunter.io/developer/1604438132)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-03-06
- Data updated: 2026-08-17
- User reviews in markdown: https://appshunter.io/ios/app/decibel-meter-sound-level/id6741395557/reviews.md

## What is Decibel Meter?

Measure the sound levels around you in real time.

Decibel Meter turns your iPhone into a sound level meter. Point your device at any sound source and get instant dB SPL readings displayed on a clear circular gauge with a live-updating chart.

REAL-TIME MEASUREMENT
See your current sound level update 10 times per second. The circular gauge changes color to indicate safe, moderate, and dangerous noise levels at a glance.

LIVE CHART
Track how sound levels change over time with a continuously updating line chart. Free users get a 15-second window; Pro users can extend it to 30 seconds, 1 minute, 2 minutes, or 5 minutes.

SESSION HISTORY
Save your measurement sessions and review them later. Each saved session includes average, minimum, maximum, and peak dB levels along with a visual sparkline of the recorded data.

PRO FEATURES
Upgrade to unlock the full experience:
- Detailed statistics (Min, Avg, Max, Peak)
- Extended chart durations up to 5 minutes
- Full session history
- Microphone calibration offset

PRIVACY FIRST
All audio is processed entirely on-device. Nothing is recorded, stored, or sent anywhere. Period.

IMPORTANT
Decibel Meter provides estimates based on your device's built-in microphone. It is not a calibrated measurement instrument and should not be used for regulatory, occupational health, or safety compliance purposes.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly subscription | $39.99 | per year |
| Weekly subscription | $3.99 | per 7 days |



## Version history (last 2 releases)

### 1.0.1 — 2026-04-02

Bug fixes

### 1.0 — 2026-03-06

No release notes.

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## More apps by Brais Castro

- [Next Space Launch](https://appshunter.io/ios/app/next-space-launch/id1604438130)
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All apps by Brais Castro: https://appshunter.io/developer/1604438132

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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 2026-08-17.*