# Decibel - sound level meter — Noize analyzer

> Sound pressure level meter with reference chart and recording features. (iPhone/iPad app by Paula Jeff.)

- Source: https://appshunter.io/ios/app/decibel-sound-level-meter/id1587049294 (this page in markdown: same URL + `.md`)
- Developer: [Paula Jeff](https://appshunter.io/developer/1587049536)
- Category: Utilities, Music
- Price: Free with in-app purchases
- Rating: 4.10/5 from 412 App Store ratings · 48 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.1 · 36 MB
- Languages: American English
- Released: 2021-11-19
- Data updated: 2026-08-18
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/decibel-sound-level-meter/id1587049294/reviews.md

## What is Decibel?

‎Decibel is the perfect app to evaluate the noise around you : measure the sound pressure, compare your recording to the reference chart included in the app. Is it similar to a normal conversation ? a diesel truck? a rocket launch ?

To use app's features you need a subscription:
- Saving audio recording.
- Active screen with history of audio recordings.

Privacy Policy Link:
https://docs.google.com/document/d/1fNDb7yyXRoweJNzHWQhFMn_ZuT73aK0qyOj0O36Uka0/edit?usp=drivesdk
Terms of Use Link:
https://docs.google.com/document/d/1XuFqSvXvAHeP_qz5SOAylYL2P72Bf5niOqpxCezEjqg/edit?usp=drivesdk

## Key features

- Measure sound pressure
- Compare to reference chart
- Analyze noise levels
- Save audio recordings
- Active screen history

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| dB: decibel sound level meter | $3.99 | per 7 days |
| 3 moths Subscription | $29.99 | per 3 months |
| Decibel meter PRO | $9.99 | per 7 days |
| Decibel level meter | $9.99 | per 7 days |
| Decibel - Sound Level Meter | $29.99 | per year |
| Decibel - Sound Level Meter + | $3.99 | per 7 days |


## What do users think of Decibel?

Overall sentiment: negative

**Pros**

- 👍 Easy to use and intuitive interface
- 🎯 Accurate and reproducible readings
- 📱 Convenient pocket-sized sound meter
- ⚡ Fast and instant measurements
- 🎨 Clear visual display
- 💼 Useful for professionals and various applications

**Cons**

- 💰 Extremely expensive subscription model ($30-$40/month or $5-$10/week)
- 😤 Deceptive free-to-download marketing strategy
- 🚫 Completely unusable without paid subscription
- ⚠️ Misleading App Store listing as free
- 🎣 Aggressive upsell tactics and review fishing
- 🔒 Paywall appears immediately upon download
- ❌ No functional free version or trial period

**Commonly reported bugs**

- App doesn't work on some iPhone models
- Pushy notification system for upselling

**Most requested features**

- Functional free version with basic features
- Free trial period before requiring subscription
- More transparent pricing disclosure in App Store listing
- Comparison with professional audio equipment accuracy

## Recent user reviews (10 of 48)

All indexed reviews: https://appshunter.io/ios/app/decibel-sound-level-meter/id1587049294/reviews.md

### 1/5 — 저 아예 사용한적 없는데 제발 환불 해주세요 거의 3달동안 일주일에 5000원이 나갔어요 ;;;;;;;;

*2026-02-19*

저 사용한적 없는데 환불 부탁드립니다

### 5/5 — 유료에요?

*2024-10-11*

제가 초등학생이라서 돈 못하거든여? 결제안되긴했는데 무료로되길바랍니다. 불편하지만 별5개드릴게여

### 1/5 — 성능도 낮고 유료배너 엄청나게뜸

*2024-04-06, version 1.0*

간단한 소음체크로 큰 유료 구독을 하게 만든다
피해야할앱

### 2/5 — 하하하하…

*2024-03-04*

유료네요 데시벨 측정기에 돈쓰긴 좀 아까워서 깔자마자 지웠습니다 무료로 바꾸면 좋을것 같아요

### 4/5 — 환불요청

*2023-10-31*

실수로 결제되었어요 환불해주세요

### 1/5 — 환불

*2023-10-16*

유료인거 알고 바로 삭제했습니다
자동결제 안되게 해주세요 만약 된다면 환불해주세여

### 1/5 — 취소해주세요

*2023-09-02*

중간에 멈췄는데도 결제가 됬어요
취소해주세요
유료면 유료표시해주세요 ㅠㅠ
취소부탁드립니다.

### 3/5 — 환불부탁 드립니다

*2023-09-01*

무료 어플인줄 알고 받았습니다 ㅠㅠ홥불 부탁드립니다

### 5/5 — .

*2022-10-17*

실수로 결제가 되었습니다. 사용하지 않았는데 환불 부탁드립니다.

### 5/5 — 환불요청드립니다

*2022-09-27*

아이가 경로를 알 수 없이 다운받고 구독까지 신청된듯합니다  환불을 요청드립니다

## Frequently asked questions about Decibel

### What does the Decibel app do?

Decibel is an application designed to measure and evaluate the sound pressure levels in your surroundings. It allows you to compare the recorded noise levels against an included reference chart to understand how they relate to common sounds like conversations or louder noises.

### What are the key features of Decibel?

The app allows you to measure sound pressure and compare your recordings to a reference chart. With a subscription, you can also save audio recordings and utilize an active screen that displays a history of these recordings.

### How much does Decibel cost?

The app requires a subscription to access its full features, including saving audio recordings and viewing the history of recordings on an active screen. The base functionality of measuring sound pressure is available without a subscription.

### What is the purpose of the reference chart?

The reference chart included in the app helps you contextualize the sound pressure levels you measure. You can compare your recordings to familiar sounds such as a normal conversation, a diesel truck, or even a rocket launch to better understand the intensity of the noise.

### Can I record and save sounds with Decibel?

Yes, the ability to save audio recordings is a feature unlocked with a subscription. This allows you to keep a record of the sound levels you measure for later review or comparison.

## Version history (last 1 release)

### 1.0 — 2021-11-19

No release notes.

## Apps similar to Decibel

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Decibel X:dB Sound Level Meter](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923) | 4.6 (160,618) | Free | Utilities |
| [Decibel : dB Noise Level Meter](https://appshunter.io/ios/app/decibel-db-noise-level-meter/id6464403884) | 4.4 (250) | Free | Utilities |
| [Decibel Meter - Sound Level dB](https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1624503658) | 4.7 (1,294) | Free | Utilities |
| [Decibel : dB sound level meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1227650795) | 4.6 (36,118) | Free | Utilities |
| [Decibel dB – Sound Level Meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1644852399) | 4.7 (676) | Free | Utilities |
| [Decibel X PRO: dBA Noise Meter](https://appshunter.io/ios/app/decibel-x-pro-dba-noise-meter/id1257651611) | 4.7 (6,888) | $69.99 | Utilities |

## More apps by Paula Jeff

- [Clear Waves - Sound Generator](https://appshunter.io/ios/app/clear-waves-sound-generator/id1610304418)

All apps by Paula Jeff: https://appshunter.io/developer/1587049536

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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 2026-08-18.*