---
title: "SPLnFFT Noise Meter - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "SPLnFFT is a sound level meter (noise meter) for your iPhone or iPad with many advanced features: frequency analyzer, frequency meter, test signal generator, dosimeter, ...  This soundmeter App is the"
---

# SPLnFFT Noise Meter — United States
> Serious audio measurements

![SPLnFFT Noise Meter App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/d5/dd/8b/d5dd8bc2-ed57-2619-3902-d07b364c09d8/AppIcon-0-0-1x_U007emarketing-0-7-0-85-220.png/434x0w.png)

**Developer:** [Fabien Lefebvre](https://apptail.io/developer/fabien-lefebvre-eWK)
**Category:** Utilities
**Rating:** 4.8/5 (61 ratings)
**Price:** $3.99
**Bundle ID:** 3PT89Q4SZ4.SPLnFFT
**Store:** Apple App Store
**Country:** United States
**Version:** 7.1 (released 2023-12-24)
**Original Release:** 2010-02-18
**Languages:** English, French, German

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id355396114)
**AppTail Page:** [https://apptail.io/app/splnfft-noise-meter-dCQb/united-states](https://apptail.io/app/splnfft-noise-meter-dCQb/united-states)

## SPLnFFT Noise Meter Description
SPLnFFT is a sound level meter (noise meter) for your iPhone or iPad with many advanced features: frequency analyzer, frequency meter, test signal generator, dosimeter, ...

This soundmeter App is the only one for iOS recommended by the "Laborers' Health and Safety Fund of North America".
Here are extracts from other reviews:
"our favorite sound measurement app" SafetyAwakenings.com
"SPLnFFT is comprehensive, easy to use" TapeOp.com
You will find more reviews here: 

For daily use, a very simple interface displays the level of exposure: if orange or red, protect your ears !
Professional users will take advantage of a wide range of accurate and reliable measurements: Leq, peak, L10, L95, taktmaximal, frequency analysis, histogram, dosemetering, ... A&C weightings are compliant with ANSI® S1.42 standard. "468" refers to ITU-R 468-4

*** Some KEY INFORMATION *** :
- you absolutely need to allow access to microphone to use this App
- screen rotation must be un-locked
- there are built-in help messages (speech bubble). Need more ? Contact us !: email, blog, Facebook,...
- do not expect to measure as low as 0dB(A) in a quiet room, for these 2 reasons: 30-130dB(A) is the standard usable range for sound level meters and anyway a standard quiet room is around 30dB(A) whereas a typical anechoic chamber is 10 to 20dB(A)

Top digital display is for measurement of sound power in 'slow' mode (averaged on 1s). Central analog display is for 'fast' mode (averaged on 1/8th s). But it can display 'slow' mode as well on request: just click on 'fast' label.
Peak and average values are displayed below and are held until you touch the 'reset' label. The videos on Youtube reveal more details.

Bottom view is a real time FFT (frequency analysis). You will notice that predominant frequency and next one are highlighted. Their frequencies and relative power are displayed on the right. If your input signal is a pure tone then this App will lock on its frequency and display a very accurate result.
Green line is the result of a real time FFT done with 1024 points. Purple line is the averaged FFT (exponential filtering done on power of each frequency). Blue line is a copy of what the purple line was when the user froze the display the last time.
A test tone at 1kHz or a white noise or a pink noise can be generated and sent to right and/or left outputs (select the type you want in BEEP tab). This FFT view - more precisely an upsized version of it - can be exported as a picture in your own photo library, using the camera button (when display is frozen only).  This picture can be exported in a mail as well.
The display can be flipped upside-down to ease reading: just rotate your iPhone while holding it vertically.

As for ALL sound meters (thus including this one and all others at any price), calibration is suggested if you want to reach extreme precision. This is enabled in this App thanks to a slider to apply some compensation and to three non volatile memories (choice to be made in MIC. tab). How to ? For calibration, you need and external reference, either a calibrated sound meter, or a calibrated noise source.
Note as well that the tiny embedded loudspeaker cannot reproduce extreme frequencies. Thus if you want to hear a real white or pink noise, you will need to use a quality headphone or HiFi system.

This App was designed seriously for our own needs, by a signal processing expert, and is regularly updated to maintain accuracy and reliability.

***** Any comment, any feedback ? Click on 'support' in iTunes: there is a blog for this. You can even contact us directly by email  or through the dedicated FaceBook page (note 'send email' top right) *****

## SPLnFFT Noise Meter Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/77/7c/d2/777cd299-a138-1c60-f559-104cf6f16277/mzl.qdcehtxy.png/640x960.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/f2/2f/f4/f22ff431-10ad-7d8c-e915-23f519223cdc/mzl.pczouley.png/640x960.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/11/29/79/112979f6-d959-1b15-936e-ee883352fbef/mzl.hbvdbccx.png/640x960.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/d3/6c/c1/d36cc19a-fb9f-376a-9387-3dee10388ca2/mzl.wtbnwmol.png/640x960.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/50/63/5f/50635fce-7ddf-7f2b-7c15-8f0921638679/mzl.sghnirlo.png/640x960.png)

## SPLnFFT Noise Meter Rating Breakdown in United States
- 5 stars: 57 (93%)
- 4 stars: 1 (2%)
- 3 stars: 1 (2%)
- 2 stars: 0 (0%)
- 1 stars: 2 (3%)

## SPLnFFT Noise Meter Reviews in United States

### ***** "Excellent low cost sound meter"
Very happy with performance of app! Using to balance sound levels between Music Keyboard and Simply Piano online lessons. But main objective is keeping listening volume at safe levels, preserving my hearing and preventing worsening tinnitus.
-- CK13536, 2024-11-28

### ***** "The Best"
I am very careful with my hearing in loud environments. This App is excellent for reading loudness levels throughout my day. I sometimes work around an airport. I always protect my ears. It's nice to know what these loud situations could be doing to my hearing at the convenience of my smartphone.

Update: I have had this App for over 8 years and still love it. The developer has maintained it all this time. So extremely happy for this. 
I used it recently when I was at a Wedding Reception. They seated us next to the speaker. I thought I was going to die. It read 96-97 db’s. I showed the people at my table how loud it was. They were surprised. And also showed them this can cause hearing damage if we are to sit here the whole night. 
Anyway, got out of that situation before the exposure limit. So useful. Thanks again!

Michael
-- skical, 2024-11-14

### *---- "Very limited features. No in app support"
Wouldnt download. I purchased app for $5 usd like a dummy. There’s no in app support. The data you can export is extremely limited csv. Other apps allow you to video record w/audio db levels. Even though I paid for the professional version of this app it will not unlock the feature. It’s a scam. Cant even contact developer in app.
-- Toyboytbfb, 2024-09-13

### ***** "Excellent Sound Level Meter"
The app is well designed and actually looks like a real sound level meter. The app works very well and is also accurate. I have tried all of the sound level meters for iOS, and this one is far superior. Congratulations to the developers. Great work!
-- Jim92677, 2023-02-01

### ***** "Fantastic, Reliable, Useful"
I use this app several times a year and have used it for many years. It is a fantastic reliable and useful app. I highly recommend it. 

It’s very helpful when measuring speakers, general levels of noise if I’m in an audience, and I even use it with over the ear headphones (I just get the mic-end of the phone as close I can where my ears would reside within the earpiece to get a general idea so I protect my ears). 

If you don’t have a dedicated spl meter (or don’t carry one around with you) I recommend you get this. You won’t be disappointed. 🙂
-- DavidRuess, 2021-09-26

### ***** "Could record without it"
Seriously! This app is awesome.
-- editbrain, 2020-06-12

### ***** "A useful app"
I keep it on my first page. I’ve had it several years. I have not noticed any bugs.
-- xftyhbju, 2019-04-17

### ***** "Very Accurate"
I’ve used this app for several years, it’s extremely accurate. I use it mainly for live music inside a club venue. This app stays reliable and steady along with upgrades of phones. 
I’ve found zero inconsistencies. 
It does help me show guitar players that their stage amp is louder than the PA.
-- RCRX1800, 2019-02-26

### ***** "Indispensable app"
This is a must-have for anyone who cares about sound, audiophiles, sound engineers and even concert goers. Use this to adjust tone controls on your car stereo or see how loud that club really is. With this app, I know for sure when to insert my earplugs. 

 I am not associated with the developers.
-- Gigabit1, 2018-11-17

### ***** "The best"
Incredible feature set. Very customizable. Super reliable. Frequently updated. What more could you want?
-- -odjbo-, 2018-10-31

[View all SPLnFFT Noise Meter reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## SPLnFFT Noise Meter In-App Purchases
| Item | Price |
|------|-------|
| Export raw data to Dropbox + PRO features | $4.99 |

## SPLnFFT Noise Meter Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Czechia | Utilities | #21 |
| Top Paid | Finland | Utilities | #63 |
| Top Paid | Lebanon | Utilities | #82 |
| Top Paid | Ireland | Utilities | #92 |
| Top Paid | New Zealand | Utilities | #94 |
| Top Paid | Belgium | Utilities | #101 |
| Top Paid | Hungary | Utilities | #103 |
| Top Paid | Denmark | Utilities | #122 |
| Top Paid | Norway | Utilities | #123 |
| Top Paid | Greece | Utilities | #126 |
| Top Paid | Singapore | Utilities | #133 |
| Top Paid | South Africa | Utilities | #134 |
| Top Paid | Portugal | Utilities | #136 |
| Top Paid | Czechia | Overall | #146 |
| Top Paid | Israel | Utilities | #147 |
| Top Paid | Colombia | Utilities | #152 |
| Top Paid | South Korea | Utilities | #153 |
| Top Paid | Netherlands | Utilities | #163 |
| Top Paid | Peru | Utilities | #164 |
| Top Paid | Sweden | Utilities | #172 |
| Top Paid | France | Utilities | #175 |
| Top Paid | Argentina | Utilities | #176 |
| Top Paid | Spain | Utilities | #176 |
| Top Paid | Romania | Utilities | #177 |
| Top Paid | Germany | Utilities | #178 |
| Top Paid | Poland | Utilities | #183 |
| Top Paid | Switzerland | Utilities | #183 |
| Top Paid | Austria | Utilities | #195 |
| Top Paid | Hong Kong SAR China | Utilities | #198 |
| Top Paid | Chile | Utilities | #199 |
| Top Paid | Australia | Utilities | #227 |
| Top Paid | India | Utilities | #235 |
| Top Paid | Ecuador | Utilities | #241 |
| Top Paid | Philippines | Utilities | #241 |
| Top Paid | United States | Utilities | #247 |

## SPLnFFT Noise Meter Discovered Keywords
- splnfft noise meter

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## SPLnFFT Noise Meter Available In
- [United States](https://apptail.io/app/splnfft-noise-meter-dCQb/united-states)
- [France](https://apptail.io/app/splnfft-noise-meter-dCQb/france)
- [United Kingdom](https://apptail.io/app/splnfft-noise-meter-dCQb/united-kingdom)
- [Netherlands](https://apptail.io/app/splnfft-noise-meter-dCQb/netherlands)
- [Australia](https://apptail.io/app/splnfft-noise-meter-dCQb/australia)
- [Canada](https://apptail.io/app/splnfft-noise-meter-dCQb/canada)
- [Germany](https://apptail.io/app/splnfft-noise-meter-dCQb/germany)
- [Switzerland](https://apptail.io/app/splnfft-noise-meter-dCQb/switzerland)
- [Sweden](https://apptail.io/app/splnfft-noise-meter-dCQb/sweden)
- [Japan](https://apptail.io/app/splnfft-noise-meter-dCQb/japan)
- [Norway](https://apptail.io/app/splnfft-noise-meter-dCQb/norway)
- [Poland](https://apptail.io/app/splnfft-noise-meter-dCQb/poland)
- [Italy](https://apptail.io/app/splnfft-noise-meter-dCQb/italy)
- [Belgium](https://apptail.io/app/splnfft-noise-meter-dCQb/belgium)
- [Russia](https://apptail.io/app/splnfft-noise-meter-dCQb/russia)
- [Czechia](https://apptail.io/app/splnfft-noise-meter-dCQb/czechia)
- [Ireland](https://apptail.io/app/splnfft-noise-meter-dCQb/ireland)
- [Singapore](https://apptail.io/app/splnfft-noise-meter-dCQb/singapore)
- [Denmark](https://apptail.io/app/splnfft-noise-meter-dCQb/denmark)
- [New Zealand](https://apptail.io/app/splnfft-noise-meter-dCQb/new-zealand)
- [Spain](https://apptail.io/app/splnfft-noise-meter-dCQb/spain)
- [Hong Kong SAR China](https://apptail.io/app/splnfft-noise-meter-dCQb/hong-kong)
- [Croatia](https://apptail.io/app/splnfft-noise-meter-dCQb/croatia)
- [India](https://apptail.io/app/splnfft-noise-meter-dCQb/india)
- [South Korea](https://apptail.io/app/splnfft-noise-meter-dCQb/south-korea)
- [Latvia](https://apptail.io/app/splnfft-noise-meter-dCQb/latvia)
- [Philippines](https://apptail.io/app/splnfft-noise-meter-dCQb/philippines)
- [Slovenia](https://apptail.io/app/splnfft-noise-meter-dCQb/slovenia)
- [Ukraine](https://apptail.io/app/splnfft-noise-meter-dCQb/ukraine)
- [Lebanon](https://apptail.io/app/splnfft-noise-meter-dCQb/lebanon)
- [Lithuania](https://apptail.io/app/splnfft-noise-meter-dCQb/lithuania)
- [Luxembourg](https://apptail.io/app/splnfft-noise-meter-dCQb/luxembourg)
- [North Macedonia](https://apptail.io/app/splnfft-noise-meter-dCQb/north-macedonia)
- [Malta](https://apptail.io/app/splnfft-noise-meter-dCQb/malta)
- [Mexico](https://apptail.io/app/splnfft-noise-meter-dCQb/mexico)
- [Greece](https://apptail.io/app/splnfft-noise-meter-dCQb/greece)
- [Estonia](https://apptail.io/app/splnfft-noise-meter-dCQb/estonia)
- [Bulgaria](https://apptail.io/app/splnfft-noise-meter-dCQb/bulgaria)
- [Iceland](https://apptail.io/app/splnfft-noise-meter-dCQb/iceland)
- [Israel](https://apptail.io/app/splnfft-noise-meter-dCQb/israel)
- [Jamaica](https://apptail.io/app/splnfft-noise-meter-dCQb/jamaica)
- [Indonesia](https://apptail.io/app/splnfft-noise-meter-dCQb/indonesia)
- [Barbados](https://apptail.io/app/splnfft-noise-meter-dCQb/barbados)
- [Colombia](https://apptail.io/app/splnfft-noise-meter-dCQb/colombia)
- [Qatar](https://apptail.io/app/splnfft-noise-meter-dCQb/qatar)
- [China](https://apptail.io/app/splnfft-noise-meter-dCQb/china)
- [Namibia](https://apptail.io/app/splnfft-noise-meter-dCQb/namibia)
- [Bermuda](https://apptail.io/app/splnfft-noise-meter-dCQb/bermuda)
- [Grenada](https://apptail.io/app/splnfft-noise-meter-dCQb/grenada)
- [British Virgin Islands](https://apptail.io/app/splnfft-noise-meter-dCQb/british-virgin-islands)
- [Oman](https://apptail.io/app/splnfft-noise-meter-dCQb/oman)
- [Uruguay](https://apptail.io/app/splnfft-noise-meter-dCQb/uruguay)

---

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