# Decibel Meter: Noise Detector — Noise Tracker & Sleep Sounds

> Noise Tracker & Sleep Sounds (iPhone/iPad app by Nhan Tran.)

- Source: https://appshunter.io/ios/app/decibel-meter-noise-detector/id6797444940 (this page in markdown: same URL + `.md`)
- Developer: [Nhan Tran](https://appshunter.io/developer/1796345687)
- Category: Utilities, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 48 MB
- Languages: American English, Arabic, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean and 7 more
- Released: 2026-08-26
- Data updated: 2026-09-01
- User reviews in markdown: https://appshunter.io/ios/app/decibel-meter-noise-detector/id6797444940/reviews.md

## What is Decibel Meter?

Understand the sound around you with a clear, real-time decibel meter.

Decibel Meter turns your iPhone or iPad into a practical sound-level companion. View the current reading, minimum, average, maximum, range, live trend, and noise category at a glance.

MEASURE AND UNDERSTAND SOUND
• Monitor ambient sound levels in real time
• See current, minimum, average, maximum, and range values
• Follow an 18-second live analyzer and session duration
• Compare readings with a built-in noise level guide
• Calibrate from -20 to +20 dB against a trusted reference

RECORD YOUR MEASUREMENTS
• Record measurement sessions with their timeline and statistics
• Review saved sessions whenever you need them
• Delete saved measurements easily
• Keep measurement data stored locally on your device

RELAX, FOCUS, OR SLEEP
• Mix 16 procedural soundscapes, including rain, ocean waves, forest, white noise, pink noise, brown noise, fan, birds, stream, wind, thunder, campfire, crickets, clock, piano, and meditation
• Adjust each sound independently
• Save favorite mixes as presets
• Set a sleep timer and receive a local notification when playback ends
• Continue soundscape playback in the background

CHECK YOUR DEVICE
• Test the microphone and speaker
• Review battery, storage, display, connectivity, audio routes, and available sensors

PRIVATE BY DESIGN
Microphone audio is analyzed on your device. The app does not upload your listening session. Recording a measurement saves sound-level data and statistics—not microphone audio.

IMPORTANT
Phone microphones are not certified sound-level meters, and readings may vary by device. Calibrate against a trusted instrument when accuracy matters. This app is intended as a practical reference tool and is not a substitute for certified equipment or professional hearing-safety advice.

PREMIUM FEATURES — SEPARATE PURCHASE REQUIRED
• Unlimited measurement recording requires a Premium subscription
• Removing advertisements requires a Premium subscription

Privacy Policy: https://nhantran2112.github.io/decibel-meter-sound-detector/privacy-policy.html
Terms of Use: https://nhantran2112.github.io/decibel-meter-sound-detector/terms-of-use.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Yearly | $9.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Onetime | $14.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-26

No release notes.

## More apps by Nhan Tran

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- [Orivue Player - Smart IPTV](https://appshunter.io/ios/app/orivue-player-smart-iptv/id6794785151)

All apps by Nhan Tran: https://appshunter.io/developer/1796345687

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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 2026-09-01.*