# Sound Level Analyzer Lite — Decibel Meter

> iPhone sound level meter for environmental and audio analysis with calibration. (iPhone/iPad app by TOON,LLC.)

- Source: https://appshunter.io/ios/app/sound-level-analyzer-lite/id886090835 (this page in markdown: same URL + `.md`)
- Developer: [TOON,LLC](https://appshunter.io/developer/633948723)
- Category: Utilities, Health & Fitness
- Price: Free
- Rating: 2.90/5 from 10 App Store ratings · 10 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 3 MB
- Languages: English, French, German, Japanese, Portuguese, Spanish
- Released: 2014-06-10
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sound-level-analyzer-lite/id886090835/reviews.md

## What is Sound Level Analyzer Lite?

"Sound Level Analyzer Lite" is a sound level meter app for iPhone. 

Available in variety of applications as the neighboring environmental noise measurement, audio system check, vehicle interior noise check, sound check of live events, and more.

This app can easily set the frequency weighting characteristic and the time weighting characteristic necessary for sound level meter, and appropriate sound level measurement is possible.

It also has the calibration function to adjust the microphone level for each device.

Features:
- Sound level measurement (dB): Leq (equivalent noise level), Min (minimum value), Max (maximum value), Avg (time average equivalent noise level)
- Frequency weighting correction characteristics : A (for noise level meter), C (for sound level measurement), Z (no correction)
- Time weighting characteristics : Fast = 0.125 sec, Slow = 1.0 sec
- Calibration function: level correction value setting, -20 to +20dB
- Measurement time: 20 sec 

Applications:
- Live Sound 
- Environmental noise measurement 
- Installation of audio equipment 
- Tuning of audio equipment
- Architectural acoustics 
- Broadcast 
- Device management

Example of the noise level situation: 
 - 130dB : Engine sound of Airplane
 - 110dB : Horn of Car
 - 100dB : Noise of passing train
 - 90dB : In loud factory
 - 80dB : In the train, Vacuum cleaner
 - 70dB : Noisy office, Noisy street
 - 60dB : Quiet Car, Normal conversation
 - 50dB : Quiet office
 - 40dB : In the library, Quiet residential area
 - 30dB : Outskirts of midnight, Whisper
 - 20dB : Sounds of rubbing leaves

Note:
At the time of the first access to Microphone after installing the app, you will be asked authorization to access them by the iOS system. If you have not enabled this setting, the app can not access them by privacy restrictions of the iOS system. Please enable the access permission on the iOS setting, "Settings > Privacy > Microphone".

The standard noise measurement range is 30-130 dBA, and even in a quiet room, the measured value is approximately 30 dBA. In any silent environment, it will not be measured with very low noise levels, such as 0 dBA.

The WHO has proven direct links between noise and health risks; tinnitus, sleep disturbance, stress, cognitive impairment, heart diseases and annoyance in general. Please check your environmental noise for your wellness.

Please visit our iOS App Support page for more information on this app.

## Key features

- Sound level measurement (dB)
- Frequency weighting correction
- Time weighting characteristics
- Calibration function
- Measurement time setting
- Environmental noise analysis

## Recent user reviews (10 of 10)

All indexed reviews: https://appshunter.io/ios/app/sound-level-analyzer-lite/id886090835/reviews.md

### 1/5 — Auto rotate gone, up 4 steps back

*2018-03-13, version 3.0*

Ability to auto rotate gone. To see the screen and point the mic is not possible any longer. 

UI looks much worse.

### 1/5 — Crashes on iPhone X

*2018-03-10, version 3.0*

Crashes back to iOS when starting to listen on iPhone X

Deleted and reloaded app, still crashes
That’s all I have to say, this used to be a great app.

### 1/5 — Does not record sound actively

*2017-06-03, version 2.3*

I tried this out in a very noisy environment and it did not register any sound. There are no instructions or settings that I could find. I assume it does not work with my iphone 5s.

**Developer response:** There may be a problem accessing the microphone. Please check if you have enabled the microphone input in the iOS settings.

### 1/5 — Lite

*2016-12-04, version 2.2*

I tried to use this app and it was impossible because of the ads covering up part of the screen. I deleted it.

### 5/5 — well-designed and accurate

*2016-11-02, version 2.2*

I'm an acoustical consultant, and tried out a few free sound level meter apps. This was the best I tried because it offers A, C and Flat weightings, calibration, fast and slow response, min, average, max and Leq levels. Nice job on this useful app.

### 4/5 — Sound Level Analyzer Lite

*2016-08-02, version 2.2*

Seems to do what it should easily and quickly.

### 5/5 — Decibel Recorder

*2016-06-03, version 2.2*

Excellent app. Easy to use and it gave uniform dBA readings when compared to other decibel recorders.

### 5/5 — Great free app

*2016-04-12, version 2.1*

The DEP was just here in my apartment in NYC measuring sound with a $3000 sound meter. I tested three apps concurrently and this one was the most accurate.

### 1/5 — Worthless to me

*2016-03-31, version 2.1*

I play most of my music off my iPhone. I cannot run this application at the same time that I'm play my MP3s! What's with that? How do I play my MP3s and know the decibel level? You can't with this application.

### 5/5 — Great fun

*2015-10-05, version 1.3*

Great for casual use!

## Frequently asked questions about Sound Level Analyzer Lite

### What is Sound Level Analyzer Lite used for?

Sound Level Analyzer Lite is used as a sound level meter to measure decibel levels. It's helpful for analyzing environmental noise, checking audio systems, and evaluating sound at live events.

### Does Sound Level Analyzer Lite have ads?

The provided data does not specify if Sound Level Analyzer Lite contains advertisements. As it is a free application, it may include ads.

### What are the measurement capabilities of Sound Level Analyzer Lite?

It measures Leq (equivalent noise level), Min (minimum value), Max (maximum value), and Avg (time average equivalent noise level). It also supports A, C, and Z frequency weighting and Fast/Slow time weighting.

### Can I calibrate Sound Level Analyzer Lite?

Yes, Sound Level Analyzer Lite includes a calibration function that allows you to set a level correction value between -20 to +20dB to adjust the microphone level for your specific device.

### What is the standard measurement range for Sound Level Analyzer Lite?

The standard noise measurement range is 30-130 dBA. Even in a quiet room, the measured value will be approximately 30 dBA, and it cannot measure very low noise levels like 0 dBA.

### What devices is Sound Level Analyzer Lite compatible with?

Sound Level Analyzer Lite is compatible with iPhone, iPad, and iPod devices.

### How often is Sound Level Analyzer Lite updated?

The latest version of Sound Level Analyzer Lite is 7.0, and it was last updated on October 12, 2022. This indicates it receives periodic updates.

### What is the age rating for Sound Level Analyzer Lite?

Sound Level Analyzer Lite has an age rating of 4+, making it suitable for younger users and general audiences.

## Version history (last 1 release)

### 7.0 — 2022-10-12

- Improved internal processing and performance.
- Renewed UI design.
- Requires iOS 15.0 or later.

## Apps similar to Sound Level Analyzer Lite

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Vibration analysis](https://appshunter.io/ios/app/vibration-analysis/id817385888) | 4.0 (42) | Free | Utilities |
| [Decibel Meter - Sound Meter](https://appshunter.io/ios/app/decibel-meter-sound-meter/id1373636871) | 4.3 (222) | Free | Utilities |
| [SignalScope X](https://appshunter.io/ios/app/signalscope-x/id1304775893) | 3.0 (21) | Free | Utilities |
| [Tone generator](https://appshunter.io/ios/app/tone-generator/id457003837) | 4.0 (144) | Free | Utilities |
| [SmarterNoise Pro](https://appshunter.io/ios/app/smarternoise-pro/id1466745030) | 4.3 (27) | Free | Utilities |
| [Decibel : dB sound level meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1227650795) | 4.6 (36,014) | Free | Utilities |

## More apps by TOON,LLC

- [Audio Tone Generator Lite](https://appshunter.io/ios/app/audio-tone-generator-lite/id633948720)
- [Audio Frequency Analyzer](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742)
- [Sound Level Analyzer](https://appshunter.io/ios/app/sound-level-analyzer/id886109671)
- [Hearing Analyzer Portrait](https://appshunter.io/ios/app/hearing-analyzer-portrait/id922806926)
- [Hearing Analyzer Lite](https://appshunter.io/ios/app/hearing-analyzer-lite/id922827806)

All apps by TOON,LLC: https://appshunter.io/developer/633948723

---

*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 2026-06-10.*