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By Logitech Inc.

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Ultimate Ears has designed this SPL tool to let you measure the sound pressure level using your iPhone and iPad. This tool also works with 4th generation iPod touch, but not earlier versions.

This App can be used to measure dB levels. For instance, you can check the sound level in your music room before a recording, or verify whether you are exposing yourself at a concert to sound pressure levels that may lead to hearing loss.

Who is Ultimate Ears?
Ultimate Ears makes Custom In-Ear Monitors and Universal Fit Earphones for touring musicians, pro-audio engineers, audiophiles and music fans alike. For more info on Ultimate Ears, or to get access to videos, up-and-coming bands, and music trends, visit our website:

Sound pressure level meter is for recreational use only
Accuracy of SPL readings varies depending on the Apple device model used

What's New in Version 2.1.1

Fixed orientation bug on Info screen. Shortened App UI name to "UE SPL".

iPhone Screenshots

iPhone Screenshot 1
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Customer Reviews

Response to SomeNickName1492 review

I haven't actually downloaded this app - looks to be fairly consistent with what an SPL app does.

I felt I had to reply to earlier post regarding reading of 40ish db in what reviewer claimed to be total silence.


* Unless you are in a vacuum devoid of air and thus sound - you are reading verrrry quiet background noise. This is normal or rather a reading that is quieter than most.

Average quiet rooms will read in the 40s to 50s.

Also pay attention to the "A" or "C" weighting scale.

"A" measurements do not register lower bass to give you a closer proximity of what your ears are actually hearing as we all know that the average human ear does not perceive bass as loudly as midrange tones - even less at lower volumes.

"C" measurements do account for bass energy and will therefore boost the apparent spl reading higher at all volume readings.

Because I have to submit a rating - I will give it 5 stars for now.

I might feel inclined to actually review this app once I use it later.

OK for general use

I installed the app on an iPod touch 5g. Measuring broad spectrum sound, it agrees within 1-2 dB with my sound meter. Using a test CD that produces warbles tones across the audible range, I found that it cannot measure frequencies below 100 Hz very well. Mid frequencies were accurate. Beginning at 2.5 kHz, it began to read high by about 3-4 dB. At 6.3 kHZ, it was ready about 5-8 dB high. Response dropped off at 10 kHz and it was reading about 5 dB low. Would be nice to be able to do a multi-point calibration at various frequences to improve accuracy. In general, I'm satisfied that it serves it's intended purpose.

Another sound engineer likes!

Great interface... Seems accurate enough, getting similar readings from other spl apps. But much better interface.
Options are key: turn off intro video! Switch between a and c weighting.

View in iTunes
  • Free
  • Category: Entertainment
  • Updated:
  • Version: 2.1.1
  • Size: 2.5 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 4.0.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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