FFT Plot

The FFT Plot is now available for $0.99 for both iPhone and iPad owners.The application is designed for use in English language. It weighs in at only 9.6 MB to download. It is highly advisable to have the latest app version installed so that you don`t miss out on the fresh new features and improvements. The current app version 1.0 has been released on 2014-11-24. The Apple Store includes a very useful feature that will check if your device and iOS version are both compatible with the app. Most iPhone and iPad are compatible. Here is the app`s compatibility information: Compatible with iPhone 3GS, iPhone 4, iPhone 4S, iPhone 5, iPod touch (3rd generation), iPod touch (4th generation), iPod touch (5th generation) and iPad. Requires iOS 6.0 or later. This app is optimized for iPhone 5.
Bottom Line: For more information about FFT Plot check developer ONYX Apps`s website : http://onyx3.com/

Very nice app It hasn t been updated in quite a long time but it works just fine in iOS 11 I d like to see an update with more robust features hi developers maybe a spectrum analyzer too or more info on the frequency graph etc But as it stands it works very well                     Very nice Kjp123

Exactly what I want                     simple and easy everfrien

I was interested in 20 80 Hz The range appears to be fixed at 0 21k So the low frequency resolution is coarse and the is no peak hold for catching unstable sources         Fixed frequency range no zoom Djp16746

Super simple An invaluable tool                     Great app sethfreakingely

The nicest thing about this analyzer is that it has the ability to recognize the particular microphone you have plugged in to your iPhone I use a Shure MV88 stereo mic That means that the application is calibrated for my particular microphone I was able to quickly equalize my sound system and it sounds much better now                     Very nice FFT scubnubbic

If you re curious about tonals noises or how loud that concert really is                     Fun and sciency 21stCenturyParent

It s a nice simple frequency analyzer that works well Used it to help explain frequency and pitch to the kid There s not a lot of bells and whistles and flashy graphics May appeal more to a more technical geeky user Would recommend                     Nice frequency analyzer FrankDRoosevelt

Using it for a school project Tried a few free options and there is nothing close to this app on the market Works very well                     Fantastic FFT Tolga Balci

Although I would recommend their more expensive fully featured app Well worth the money                     Works great Taiden

Would be perfect if it can record a samples                     Great app Vincent.hao.xu

I use this for music instruments and tuning forks Does the job                     Simple and accurate Rat8bug

It s fast slow and window choices and look and feel are very natural for working in the frequency domain Watching music it just looks proper The ability to decode the frequency peak to a musical note is a natural but extremely useful feature Three features I d like to see 1 Screen capture video share the look of your favorites dynamically 2 Capture Process Slomo capture a length of audio process the FFT then play the video back slowly with scrubbing to allow transposition of complex arpeggios 3 Transpose 2 into musical score or tablature                     My Fave FFT App Cap'n Zig

Nice simple app It does the job well I downloaded this app to test the frequencies in songs as I curious what are the notes sung                     Simple and Useful Adrian E. Braun

I use this at FOH a lot and really love it Very useful and accurate                     Awesome App Giddy33352678

This app is great for finding noise sources I have been using it now for a good while and have been very pleased with it It is easy enough to use and it wasn t expensive I hope you enjoy it too                     Great App B9 Car Guy

I use this app when I m performing the final tuning in car audio systems and I m impressed with the response and resolution it has It could be better if it supported external microphones such as ZOOM s XY and omni capsules but performs pretty reliably through the iPhone s internal microphone And fairly accurate up against my ARC software in my recording studio studio Well worth the money if you need a good FFT                     Underrated Mister_Coke

This is an awesome app Fastest and highest resolution FFT I have seen on App Store Professional development and works well My only request is that there be a better measurement system of overall volume 60dB for voice and 95dB for concert etc Oh Also please add split screen support for iPad                     Pretty great Could have better decibel calibration b_t_naderal

Very cool app that tells you the spl at different frequencies                     Very cool I-read

Works great for real time analysis of studio monitor frequency response in a particular studio configuration as well as tuning a PA system at a new location Seems to be more accurate using an external mic with a flat response                     Does everything I need it to do megrein

Has all of the features you d hope and need to do simple spectrum analysis or tuning I ve used it to troubleshoot turbulent flow in a nitrogen compressor and then tuned my piano with it later that evening Worked perfectly                     Works as your audio minded search would hope CNoNews

This app works up to 20kc the top of human hearing If the bandwidth is available then enlarging the app to 40kc would allow you to study Ultrasound Also                     Here is a slight improvement idea Ken Finn

I used it to diagnose a whistle sound in an air handling unit It works quite well and I have told several other people about it I use an iPhone 5 and when you take a screen shot and upload it to your computer it looks very professional The other features are very nice too My only suggestion is to allow zooming in on the Hertz scale                     I really like this app luckyjayguy

Great for tuning violin plates and other acoustic modes                     Lutherie MisterEarl

I use it to track hums and vibrations throughout the home set up my home entertainment system adjust my bass guitar settings while playing on stage Accurate entertaining and informative                     Multiple uses johnbowen

I love this app though I m experiencing the same issue since the latest iPad iOS update Lots of flashing and I ve tried every fix I can think of and it s still not working This app has been so useful to me in the past Hope it gets fixed soon                     Love It prestonesquire

Flashes under the latest IOS 9 01 not sure why it s doing that when it didn t under the previous IOS         OK but needs work Euzkadi71

Please make the frequency axis fully scalable Better yet make it so you can zoom or set to a specific range             Ok but f axis not scalable The Eclectic

Useful and a needed tool in my audio work Highly recommend this AP                 Owner Audpac

great app                     a soundplayer

I have been waiting to have this kind of app Thanks                     It works perfectly Jiyoungryu

I use it to help EQ vocals and instruments on our church s soundboard It compares favorably with a pro sound app on a Mac with a mic Hey can you create sound meter app that will compensate for each phone model s mic frequency response I have not found any accurate meter apps                     Great for running a sound board To45ty

Worst app on sound that I ever used Don t worth the money I have spent on it It look like a you and NOT a tool that I thought I could use for quick analysis of NVH application You people are f up you don t allow any right comments that is against your apps                     Bull cheeettt Bull_cheeettt

Very helpful at analyzing a room and discovering resonate frequencies hot spots and dead spots                     Great ChrisBo47905

I use this program for mode tuning on violins It an amazing app                     Violin making Violin guy246

Displays a clear and accurate the frequency present in an environment Hats off to the developers A app                     Feedback no problem Floridaboy33

Me and my friend used this app for a science fair project testing the sound waves blah blah blah Basically it was great and very helpful so thank you and I totally suggest the app for future people interested in getting it                     SCIENCE FAIR Jay-Jay 123

Love it                     Perfect Chip Fillingane

This app is awesome So much power for fine tuning your sound We use it at our practice and at gigs to get any and all feedback howling etc out of the mix You can see exactly where the problem is Easy to use too                     Best App Ever Rocksalot

I am using it in a project to analyze and make ocarinas It is proving very powerful at providing information on harmonic content of each of the fingerings as well as reliable at locking onto the fundamental and displaying it Very useful also is its settings for integration time since the ocarina is a mouth blown instrument and tone changes a lot with how you blow a particular note True one can think of lots of features you might want to see added but for the price you get a powerful tool worth every cent of the price                     Simple and Powerful HiMike45

Rta lite both stopped working and added adds to the last update so I went looking for a new simple app to ring monitors with this one is doing all it needs to do Not fancy but totally functional Here s o hoping hey keep up with it                     Live sound works for me listener cam

This app seems a bit harder to navigate than others I ve tried             OK but a bit squirrely Jango Sparrow

This is a perfectly designed app The single window interface is sooooo nice I love that there aren t a bunch of pop up windows and other clutter They keep it straight to the point give you exactly what you need to analyze whatever sounds are around you The peak frequency section is so handy and it s great that it shows you the corresponding note value right next to it The pause button is great to just freeze the waveform and analyze the peaks nulls by sliding your finger across the screen I have used frequency analyzers in the past on my computer but there was always about 15 steps involved in getting it set up This app is instant and there is no setup required I WON T be using the one on my computer anymore and I WILL be buying more apps from this company If you want a beautifully designed and handy frequency analyzer app this app is PERFECT                     Perfect UrGrandMother

needed for school worked great                     great stuff Alaskanrain2

The total DB needs a function to change the weighting A B or C                 MEP QCM Dori Crazed