# Sound Meter: dB & Noise Level — Decibel Monitor & Oscilloscope

> Decibel Monitor & Oscilloscope (iPhone/iPad app by Ali Onur Unver.)

- Source: https://appshunter.io/ios/app/sound-meter-db-and-noise-level/id6772269426 (this page in markdown: same URL + `.md`)
- Developer: [Ali Onur Unver](https://appshunter.io/developer/1681186428)
- Category: Utilities, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 33 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, European Portuguese, Chinese (Simplified, China), European Spanish
- Released: 2026-06-05
- Data updated: 2026-11-10

## What is Sound Meter?

How loud is it, really? Sound Meter turns your iPhone into a decibel meter and shows noise the way you feel it: a live sound terrain that rises and turns from blue to red as it gets louder.

Compare nearby streets before you rent, see when the noise hit during the night, and follow your noise dose while you measure. Nothing is recorded: sound is measured on your device and stays there.

DECIBEL METER
• Live dB(A) reading with min, max and Leq
• A sound level meter you read at a glance: color and height follow the level
• Everyday comparisons, from a library to a motorcycle
• Calibrate it against a reference meter

OSCILLOSCOPE & SPECTRUM ANALYZER
• See the sound wave itself on a live oscilloscope
• A spectrum analyzer with a live column for every frequency band
• A needle gauge when you just want a quick read

NOISE MAP
• Estimated daytime traffic noise on the streets around you, in 5 dB bands
• Tap the map for the estimate and the main road type
• Pin your own measurements: 5 seconds is enough
• The layer is a model from road types, always labelled as an estimate. Your measurements are the real thing

SLEEP NOISE MONITOR
• Logs the noise in your bedroom all night
• Morning report with a quiet score, a timeline and each noise event above your threshold
• Keep a log of your nights

HEARING DOSE
• Daily noise dose from the time you measure, based on NIOSH limits
• Time left at the current level
• The dose bar turns amber at half the allowance and red at the limit

ROOM SCORE
• A comfort score for any room from a 30-second reading
• Compared with published WHO and NIOSH limits for sleep, focus and hearing, plus a rule of thumb for conversation

MORE TOOLS
• Noise alarm with your own threshold
• Live graph and spectrogram
• Sound type estimate (beta) from loudness patterns
• Home Screen widgets
• Live Activity on the Lock Screen and in the Dynamic Island
• dB camera: photos with the level on them
• History with CSV export
• 8 languages

Phone microphones give approximate readings. Sound Meter is not a certified instrument and does not replace an official measurement or medical advice. It is not affiliated with WHO or NIOSH.

FREE & PRO
The core decibel meter is free: sessions up to 2 minutes, up to 5 saved measurements, and the surface and gauge views. The oscilloscope, spectrum and live graph are open for your first 3 days. Sound Meter Pro unlocks unlimited session length, the oscilloscope, live graph and spectrum, sleep monitor, noise alarm, sound type estimate, noise map, room score, unlimited history, CSV export and an ad-free experience. New subscribers may qualify for a free trial: the plan screen shows the exact offer before you confirm.

Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://sites.google.com/view/soundmeter1-privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $29.99 | per year |


## Is Sound Meter safe?

Not enough ratings yet to assess Sound Meter.

## Is Sound Meter legit?

Sound Meter: dB & Noise Level appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Sound Meter is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 1.2.0 — 2026-11-09

• New look and a new icon
• Four live views: surface, oscilloscope, spectrum and gauge
• The sound surface now rises with the level
• Truer levels: the microphone now runs without automatic processing
• Noise map: estimated daytime traffic noise around you
• Home Screen widgets and Live Activity
• Room score compared with WHO and NIOSH limits
• Measure from any tab
• Bug fixes

### 1.1.0 — 2026-08-25

The app now speaks your language everywhere: alerts, notifications and sharing are fully localized in all 8 languages

Accessibility: better VoiceOver labels and large-text support

Faster, more battery-friendly measurements

7-day free trial on all Premium plans

Bug fixes and visual polish

### 1.0.2 — 2026-06-16

Now available in 8 languages! German, Japanese, Korean, Chinese, Portuguese, Spanish, and French are now fully supported. Free 3-day trial for Graph and Spectrum analysis. Save up to 5 recordings and record up to 2 minutes per session on the free plan.

### 1.0.1 — 2026-06-05

No release notes.

## Apps similar to Sound Meter

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Decibel Meter: Noise dB](https://appshunter.io/ios/app/decibel-meter-noise-db/id6788392364) | — | Free | Utilities |
| [NoiseProof: dB Meter & Log](https://appshunter.io/ios/app/noiseproof-db-meter-and-log/id6787817333) | 5.0 (1) | Free | Utilities |
| [Decibly: Noise Log & dB Meter](https://appshunter.io/ios/app/decibly-noise-log-and-db-meter/id6807956725) | — | $0.29 | Utilities |
| [Random Number 2: Full Screen](https://appshunter.io/ios/app/random-number-2-full-screen/id6473859416) | — | $0.99 | Utilities |
| [NoiseSnap - Noise Meter](https://appshunter.io/ios/app/noisesnap-noise-meter/id6761031366) | — | Free | Utilities |
| [Mobile Screen Recorder](https://appshunter.io/ios/app/mobile-screen-recorder/id6804444341) | — | Free | Utilities |

## More apps by Ali Onur Unver

- [DreamSoul AI - Dream Journal](https://appshunter.io/ios/app/dreamsoul-ai-dream-journal/id6751168206)
- [Fluxion: BTC & Crypto Signals](https://appshunter.io/ios/app/fluxion-btc-and-crypto-signals/id6755930341)
- [Age Calculator - Birthday App](https://appshunter.io/ios/app/age-calculator-birthday-app/id6769540663)

All apps by Ali Onur Unver: https://appshunter.io/developer/1681186428

## Related topics

[sound recognition](https://appshunter.io/ios/topics/sound-recognition)

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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 2026-11-10.*