Features & Capabilities

SPL Meter is a professional-grade sound level meter, also known as a decibel or dB meter, for your iPhone, iPad or iPod touch.

Modeled after a traditional analog SPL meter, we have faithfully reproduced all the characteristics and qualities found in those meters, including the ballistics, ranges, filters, and decay rates.

Under the hood we have advanced DSP-based algorithms that meet or exceed ANSI / IEC Type 1 standards. And starting with iOS 6, we can disable the mic filters and limiters, to get the real world performance of a hand-held SPL meter.

And now, upgrade SPL Meter with iTestMic, our pro-grade test & measurement mic, made specifically for iOS devices. Using iTestMic with SPL Meter, you get a calibrated, accurate SPL Meter, that meets industry standards for Type 2 performance. See our website for more information.

But don't compare us to a Radio Shack meter, ours is much more accurate!

We have also included a digital LCD display, as shown in the image, to make this the best SPL meter available for iPhone or iPad. And this is something that the old analog meters never had!

The screen will flip when you flip the phone over, so that you can point the iPhone mic directly at the sound source. (iPhone X does not support upside down mode)

SPL Meter is a universal app -- buy once, and use on all of your iOS devices.

SPL Meter is built by the same team that created the other great professional audio and acoustics apps on the store, Studio Six Digital. Built on the engine of our more expensive "SPL" app, SPL Meter's filters and decay rates meet or exceed ANSI type 1. This app is not a toy or a game.

SPL Meter is the one audio app that everyone who works in audio must have on their phone! Not only have we made the best one, but we've priced it so you can't afford not to get it.

*** FEATURES:

FILTERS -- A and C weighting filters are provided.

DECAY -- Choose ANSI Fast or Slow.

RANGES -- 40dB to 120dB in 9 ranges.

CALIBRATION -- Comes pre-calibrated for the typical iPhone or iPad built-in and headset mic, but you can adjust the calibration if you have a professional, calibrated meter to compare it to. Accesses our cloud-based iOS device calibration database, which we updates as new devices are released.

INTERNAL / EXTERNAL MIC -- Select Internal to activate the included compensation filter, which is designed to flatten the frequency response of the built-in or headset mic. External will work with our iPhone Measurement Mic, to be released later this summer. See our website for more details.

SPL Meter is bargain-priced to make it easy for anyone to check out one of our professional, accurate apps. Studio Six Digital is dedicated to making the iPhone and Touch a professional audio and acoustics test device.

Check out our full line of professional-grade audio and acoustics apps: SPL, the professional digital iPhone sound level meter, SPL Graph, for recording SPL over time, RTA, a 1/3 octave real-time analyzer, FFT, for detailed acoustic analysis, ETC, the energy-time curve function, RT60, for automated octave-band decay time measurement, Speaker Pop, to test speaker polarity, and Generator, the iPhone signal generator.

Also, if you are looking for more great acoustical and audio test apps, have a look at AudioTools, our premier app for audio professionals.

User Growth & Download Statistics

App
By:
Andrew Smith
Rating:
4.10
(27)
Version:
11.12 Last updated: 2025-12-22
Version code:
880854162
Creation date:
2009-03-27
Compatible devices:
Size:
27.52MB
Price:
0.99
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-05
Compare stats and ranking:

Ranking

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Andrew Smith
Apple Apps Store
https://apps.apple.com/us/app/spl-meter/id309206756
Website:
http://www.studiosixdigital.com

User Reviews

Pros: Handy, portable decibel meter; generally does what it claims; easy to use; useful for on-site tests and demonstrations; seen as good value with ongoing support. Cons: Inconsistent readings; UI/visual issues after updates; compatibility problems with newer devices/OS; pricing/billing concerns and pro-upgrade nag. Summary: The app is useful and portable, but reliability and UI compatibility on newer devices are major recurring problems that many users report, affecting its trustworthiness.
Pros
  • Handy, portable decibel meter that users can carry for on-site tests.
  • Generally does what it claims and is easy to use.
  • Useful for demonstrations and quick comparisons alongside other SPL meters.
  • Some users view it as good value at its price and it has ongoing developer support.
Cons
  • Inconsistent meter readings compared with other meters.
  • UI/visual issues after updates: smaller/blurred display, landscape problems, and screen glitches.
  • Compatibility problems with newer devices/OS versions (e.g., iOS 8, iPhone 6/6s Plus).
  • Pricing struggles and push to upgrade to a pro version; some billing complaints.
Recent reviews
The meter is too inconsistent compared to other meters. Wouldn’t recommend paying for this.
by DE*****, 2022-08-15

Don’t purchase this app. The meters are inconsistent. You’ll get a measurement then it changes completely. Not stable.
by on*****, 2022-06-03

It Said it was .99 but charged me 6.99
by se*****, 2022-04-25
View all user reviews ›

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