Does what it says and I have found it very educational. I would like to see A weighting, and smoother averaging, bit overall a swell little app. You might be suprised how loud that music is you are listening too. Hearing loss occurs at just 85 dB prolonged exposure.

Nice Application. Not high tech but it works. The average, and peak is good but I would like to see a third scale for Peak Hold, which would be the absolute Max sound peak. I would like to have the option to rotate the entire display 180 degrees, this way I can point the microphone towards the sound source and still properly view the display.

This will be a tremendous tool for helping me learn how loud decibels are. Well worth the price.

I would give it 5 stars but when I clicked to install it. 20 minutes went buy and it was stll loading and when I clicked on it my iPhone locked up for 5 hours. Then I got a message to download it through iTunes. After I did that the app. And phone work fine. It could have been on my end also. Great app. Though

Do not buy this app I wasted a dollar and it's way off db levels are no where close to what they should be.

What a waste of money.... I installed this App on my iPhone and it just crashes!

Keep in mind the iPhone's built-in microphone only goes up to 115dB. That said, this app is great to have around. It's cool to see how loud the ambient noise level is in your bedroom, office, movie theater, car, or train. It can be turned upside down so you can point the microphone where you want. Also, there is a resettable Peak Hold option now. Note: I would recommend changing the Sample Rate to about 3 seconds, as the default is much too fast to be really useful.

i wish this was able to go higher....i need it to go to at least 140 or it just peaks out on me at 110. useful for non loud situations...

Not sure the meter is accurate or not but was able to use it to test different levels of sound for waterfalls to put in my backyard. Made the choice easy. Accurate for comparing levels as long as the phone is the same distance from the source.

i downloaded this and paid!! and it doesn't work on my iPod... LIST THAT IN THE DESCRIPTION!!!!!

buy the other app because this one is way off!!! the $9.99 app is pretty close and has options

Worth a buck. Barely.

A good way to tell or show people just how loud they are! Seems to have gotten better over time. I hope I choose the better of the two apps since this one is twice the price It would be nice if it had an analog option as the icon & competitor has! I don't understand the "label" word on the meter graph & why it's there!

The large display is easy to see from across a room, and it registers a fairly high 115 dB upper limit.

I downloaded this app because I'm a vocalist and wanted to see how loud my voice can go. I maxed it out easily at 114dbs and was disappointed it didn't go higher, but for a buck, I wasn't disappointed. A novel, cheap app to teach kids about loudness.

Do not buy this app if you're measuring sounds over 114db. It caps at 114 and is unable to go any higher.

The limitation of 110 decibels is an iPhone limitation and nothing to do with this application. Prior reviewers take note...

Junk do not buy

It only goes to 114dB. I was excited to see how loud it was behind my drumset during a concert - Apparently too loud. Musicians: Steer Clear!

Got this in a pinch. Dissatisfied with app's inability to determine dB's over 100! That is the limit! Buy Decible for $0.99 and know all.

Like it, but skins could use improvement. Offer alternatives

I haven't compared it directly to an RTA but I believe it's reasonably close. if I had a complaint it would be that there's no options at all, it would be nice if it had a peak-hold option on the max db or a selectable hold time.

Tthis is a really great app (or would be!) if the rating or measuring capacity wasn't limited to 106 Decibals - I can clap louder than that! Make it better and I will gladly pay for it!

Useful, but crashes far too frequently for my taste.

Even in a dead quiet room the meter reads 40%. Don't waste ur loot, it's not even fun!

The app does what is says and works well but I would like to see these features

Got the app at a Metallica concert last night to see how loud the show was; unfortunately app tops out at 106 dB not reported 110. Here in my quiet office, the peak is jumping all the round while my SPL meter indicates fewer and lower peaks. App seems to be reporting higher average dBs than meter (3-4 dBs). App says snapping my fingers is 100 dB while meter says 50. Algorithm seems to need some slight modification. Often, I get the 'Peak Hold' not refreshing and the 'Peak" to freeze as well. The 'Sample Rate' slider is rather hard to grab and does not move smoothly. Previous reviewer suggested different meter skins; great idea (analog, digital, equalizer, numerical, etc.). I would be happy to help test future versions if you need it.