NIOSH Sound Level Meter User Reviews

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I started using this at work because I needed a way to document the noise level around my desk. The people making decisions about the workspace aren’t the ones sitting there all day, so having actual decibel readings made it easier to show that the constant noise wasn’t just my perception. I was surprised that I had to prove my desk sits around 65 dB for a basic desk job, but I’m glad I had a free tool available to measure it.

I’ve also used it at home to check noise levels around my dogs so I can be more aware of what they’re being exposed to.

I also appreciated that the app is completely free. There were no ads interrupting me and no in-app purchases getting in the way, which is becoming less common.
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Awesome App

App is working great. The developer(s) were awesome to deal with. Thanks

Great App

App is working great Now! The developer(s) were very helpful.

Thank you for creating this app

It helps me with my science project

Microphone unavailable fixed in 1.5.0(52)

I have used NIOSH for several years but it recently fails reporting my internal microphone operates at 16000 Hz and 48 kHz is required. My Starkey hearing aids connected via Bluetooth is the culprit. If I turn off Bluetooth, NIOSH works but Starkey Thrive app can’t connect. Thank you NIOSH for this accommodation.
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Shut off bluetooth on Iphone while using with hearing aids.

If bluetooth is on app will will grab hearing aid mics instead of phone mics.

Microphone unavailable

I have used NIOSH for several years but it recently fails reporting my internal microphone operates at 16000 Hz and 48 kHz is required. My Starkey hearing aids connected via Bluetooth is the culprit. If I turn off Bluetooth, NIOSH works but Starkey Thrive app can’t connect.

Check for “external” microphones!

Updating my earlier review. It is not intuitive, but if you have an external microphone setup, usually bluetooth (such as your hearing aids!) it may not work.
And kudos to the support folks who saw my first review/complaint and got back to me within about 24 hours with this critical information.
I use the app when working in an operating room, as we have a lot of different equipment that makes variable amounts of noise, and routinely get into the 70dB range and occasionally into the 80s. At which point, I see what we can turn off, to protect everyone’s hearing.
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Microphone no longer works (see update below)

Updated app wants 48kHz mic, my iPhone SE only has 24kHz? Please fix the update
Update, problem seems to be related to using my phone thru my hearing aids. When I turn that off, the microphone works fine.
Update 2, thank you to developer who explained that it’s the hearing aid microphone that is getting used instead of the phone microphone. To use the app, don’t have your phone playing thru your hearing aids.
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Stopped working due to Hearing Aids

If you connect hearing aids , iOS may cause app to not work because of this additional microphone. You will need to disable Bluetooth . Developer is responsive in helping to resolve issues.

What changed???

I used this app for years, but now it says the phone’s
mic runs at 16k. The app says it needs to be 48k and no longer works. Same phone and same app, but it cannot measure. 😒

Microphone no longer works

Updated app wants 48kHz mic, my iPhone SE only has 24kHz? Please fix the update
Update, problem seems to be related to using my phone thru my hearing aids. When I turn that off, the microphone works fine.

Loved it until recent update

No longer works after the most recent update. It says I need a different frequency microphone. I have never needed an external mic in the past, but I guess I now do.

Stopped working due to microphone

This half worked great for so long. All of a sudden one day hot told me that the microphone requires 48K abut my iPhone is 16k. WTF!

Microphone no longer works

Updated app wants 48kHz mic, my iPhone SE only has 24kHz? Please fix the update

You broke it

Worked great, 4 or 5 Stars. Then you decided to update the app. Now it does not work or randomly works and cannot be trusted. Nice work, folks. How do I go back?

Do not update!

Do not update to 1.3.0, it crashes on launch on an iPhone SE 2016. Unusable!

Save as pdf crashes

Save as pdf crashes app

Niosh sound level meter

Use to be great NOW YOU SCREWED US WITH THIS NEWEST UPDATE !!!!

Hard to use

Poor instructions. Difficult to reset.