Analyzer 3.2 – now available with full support for iOS 13.x! It comes with Audiobus 3.x support including Audiobus state saving, Inter-App Audio support, a great graphic engine and unbelievable usability and functionality! 

The Analyzer is a combination of a sound pressure level (SPL) meter and a full range multiple bands frequency analyzer. It is mainly designed for audio professionals who need to evaluate different working environments (e.g. studios, live stages)… that’s why it’s perfect for anyone who’s in need of acoustical analysis!! It is easy to use and comes with amazing features only known from professional acoustic tools.

Use the Analyzer for measuring stages, testing speakers, evaluate sound mixing environments, analyzing your instrument… or the noise your neighbor makes with his new stereo!

Combine the Analyzer with external microphones such as the Gefell M372 or the Mic-W i436 for better measurement performance! Or use it with external USB audio hardware like Apogee’s OneDuet and Quartet, the RME Fireface UCX or the Alesis IO dock, change the measurement scale to dB FS and use it as a studio Analyzer! Use the built-in signal generator for measurements – even wireless via Airplay!

The Analyzer supports Audiobus 3.x with Audiobus state saving, Inter-App Audio and offers frequency response compensations for these microphones: Apple Earphones, Apple Earpods, Apple In-Ear Headphones, Microtech Gefell M372, Mic-W i436, i266, i456, i825, i855, iShotgun, Røde iXY, Røde smartLav, Tascam iM2, Tascam iM2X  – all available as In-App purchases.

Features of Analyzer 3.2:

    • Inter-App Audio support
    • Audiobus 3.x support including Audiobus state saving
    • improved compatibility with all iOS devices
    • multiple language support starting with english and german
    • reticle with lens functionality
    • bar or fft line view
    • user definable graph colors
    • optional automatic peak detection
    • optional equal loudness contours
    • data storage
    • export to .csv oder .png files: share them via Mail, Dropbox and other Apps
    • up to 14 different snapshots (depending on the iDevice)
    • advanced iCloud support
    • zoom like in maps
    • data storage, import and export
    • advanced iCloud support
    • up to 14 different snapshots (depending on the iDevice)
    • workspace
    • select your bandwidth from 1octave up to 1/1200 octave (depending on your iDevice)
    • choose between 6 different window functions
    • select your FFT block size from 1024 to 65536 samples
    • In App help without the need of internet connection
    • signal generator (white/pink noise, sine)
    • frequency response compensation for different mic characteristics of the built-in microphones
    • switch between dB (FS) and dB (SPL) level (headset / USB in only)
    • switch between normalized and absolute frequency levels
    • manual and automatic calibration
    • Leq measurement
    • weighting functions: A B C Z
    • 3 different response times
    • audio input / output setup
  • frequency response compensations for Apple Earphones, Apple Earpods, Apple In-Ear Headphones, Microtech Gefell M372, Mic-W i436, i266, i456, i825, i855, iShotgun, Røde iXY, Røde smartLav, Tascam iM2, Tascam iM2X  – all available as In-App purchases


75 Responses to Analyzer

  • Andy

    Replied on: 04/10/2012, 11:19


    I am thinking about purchasing Analyzer (currently v1.4) for my iPad/iPhone.

    I just saw that there will be Analyzer V2 coming soon. Would this release be free for Analyzer V1 users? Or should I better wait for the new version to avoid buying it twice?

    Best regards,

    • dan

      Replied on: 04/10/2012, 12:39

      Hi Andy,

      thanx for your interest! The Analyzer 2.0 will be released as a normal update, so anybody who has a previous Analyzer version installed can make the update anytime free of charge!


    • anshuman mishra

      Replied on: 18/10/2013, 22:16 signal on my dsp analyzer.only change done on the ipad was ios7 update.Help

      • dan

        Replied on: 31/10/2013, 07:28


        please make sure the Analyzer has access to the built-in microphone: go to Settings->Privacy->Microphone and enable the Analyzer access!


  • Andy

    Replied on: 19/10/2012, 10:41


    I have just bought Analyzer, but I am very much disappointed:

    I want to use Analyzer in 1/3 Octave mode (Terzband), but the displayed frequencies numbers below the graph are a mess. What are these frequencies?
    For acoustic measurements, the 1/3 Octave band CENTER frequencies should be displayed (according to EN ISO 266)! These are the ones that can be adjusted by graphic-Equalizers!
    So, Please update the display, otherwise the app is totally useless for acoustical measurements/adjustments on stage.

    Best regards,

    • dan

      Replied on: 17/11/2012, 12:43

      Hi Andy,
      Analyzer 2.0 let’s you switch the “center” frequency between 440 and 1000Hz and it will be available very soon! The frequencies you are used to are the ones based on center of 1000Hz – give it a few days and you will have them!



  • Pat Maki

    Replied on: 28/11/2012, 09:42

    In this new ver2 analyzer there is no in app purchase for built in mic compensation. Is it included in ver2 already as default? At least I assume so because of the app price has raised.
    Regards Pat

    • dan

      Replied on: 28/11/2012, 10:07

      Hi Pat,

      exactly: we included the built-in compensation in the Analyzer 2.0.


  • mathias berghoff

    Replied on: 30/11/2012, 23:28

    i recently bought the im2 mic from tascam for recordingtasks.
    it is a stereomic with omnicapsules and its own ad-converter (16bit 44.1khz).
    any chance, that you will make calibration for this ?

    greetings and thanks for a great app,

    • dan

      Replied on: 13/01/2013, 12:49

      Hi Mathias,

      are you actually using the Analyzer with this mic – and does it work fine? If yes there’s a good chance that we will make a compensation for this mic.


  • Niels Christophersen

    Replied on: 13/12/2012, 14:31

    I have updatet to version 2.0, and the update installed, but ruined my app in OS 5.1.1.
    Im not planning to update to IOS 6, and would like to use the old app or get a app that funktions with IOS 5 as promised

    • dan

      Replied on: 13/12/2012, 19:06


      due to the many requests of iOS5 users we will make the App iOS5 compatible with the next update. BUT: in iOS5 there’s the limiter and the lowcut – we don’t think it’s clever to renounce of the huge advantages of iOS 6. We will make the App work in IOS5 but there’s no guarantee that all calibration works as well as in iOS6.


  • Michael

    Replied on: 01/01/2013, 10:42

    I bought the Analzer 2.0 but i’m not able to a activate the spectrum analyzer . When I start the app the SPL Meter will launched Subsequently at once. Afterwards it’s impossible to activate the spectrum analyzer functionality. Maybe I do an operator error ?
    Thanks in advance for your help

    • dan

      Replied on: 01/01/2013, 12:43

      Hi Michael,

      on iPhone the Analyzer view is available in landscape view. Make sure you turned off autorotation lock and turn your iPhone to landscape view – and there’s the Analyzer view. We built in an autorotation lock in both views for more practical handling – so maybe this caused your problem. It’s the white rotation symbol with/without a lock.



  • Michael G

    Replied on: 16/01/2013, 10:26

    Is the calibration of the mic on the 4S affected by the use of an Otterbox Defender protective case?

    What us the freq response spec on the 4S internal mic?

    Can I use the internal mic at the same time as I use the signal generator output through a cable? My first attempt shut off the mic!#%*!

    • dan

      Replied on: 16/01/2013, 17:02

      Hi Michael,

      here are the answers:
      – Is the calibration of the mic on the 4S affected by the use of an Otterbox Defender protective case?
      I think so because it shades the mic. How massive the influence is we can not know because we don’t have such a case and can not measure it. But if you can lay your hands on a simple SPL Meter you can measure the difference by yourself.

      What us the freq response spec on the 4S internal mic?
      – The microphones are not linear on the whole frequency range. We offer compensation curves for this.

      – Can I use the internal mic at the same time as I use the signal generator output through a cable? My first attempt shut off the mic!#%*!
      No you can’t – iOS does not allow this because it is the headset input you’re using and it automatically shuts off the internal mic the moment you use this jack. There are possibilities though when using an external mic like i436 with splitter cable.

  • Michael G

    Replied on: 20/01/2013, 01:44

    I am not using the headset output on the iPhone, I am using a cable from the big flat socket which has a 3.5mm stereo plug on the other end! Is the sig gen output from the headset jack different than the SUV gen output from the big (30-pin?) socket!?

  • Michael G

    Replied on: 20/01/2013, 02:01

    I’m using my iPhone and it put the term SUV in my above post. It was supposed to say ‘sig’. Stupid iPhone! 🙁

  • Michael G

    Replied on: 20/01/2013, 02:06

    Previously, we said: “What us the freq response spec on the 4S internal mic?
    – The microphones are not linear on the whole frequency range. We offer compensation curves for this.”

    Is the 4S compensation curve you offer included with the analyzer app and is it automatically selected or do I have to purchase the compensation curve separately?

    • dan

      Replied on: 28/01/2013, 10:51

      Hi Michael,

      the compensation curves for built-in mics are always integrated since Analyzer 2.0. So if you buy the Analyzer there’s an option to activate the compensation in the settings -> frequency compensation menu.


  • Gabriel

    Replied on: 21/01/2013, 17:45

    Im thinking about buying this app, I will use it with a Shure SM57, will it work? connecting it through USB.
    I have the freq response of this mic, would I be able to manage the frequency response compensations for it? Or you only have the set up for the MicW ones?

  • Michael G

    Replied on: 28/01/2013, 03:17

    You have not responded to my questions on the 20th. 🙁

  • Alexandr

    Replied on: 30/01/2013, 06:11

    It would be very convenient to extend the capabilities of the program:
    test phase of the signal and the test signal for this in the generator.

    • dan

      Replied on: 30/01/2013, 17:45

      Hi Alexandr,

      thanx for the input – we will think about it.


  • José Manuel

    Replied on: 04/02/2013, 00:39

    Does it have the possibility of linear frequency axis?
    Thanks in advance.

    • dan

      Replied on: 08/02/2013, 20:18

      unfortunately not – the scale is logarithmic only.


  • Estevan

    Replied on: 23/02/2013, 09:18

    Execelent programa

  • Daniel F

    Replied on: 25/02/2013, 19:08

    I just bought this app and I’m a bot over whelmed…

    Can we make the display a bit more like Octave RTA from Onyx?

    Specifically the slow mode here isn’t slow at all (not compared to the Octave RTA) and I’d like to see peaks more clearly – I’m using this to balance a home cinema system.

    I’m using the MicW i436 with this,


    • dan

      Replied on: 26/02/2013, 13:32

      Hi Daniel,

      thanx for the input, we will see what we can do. For identifying peaks the Analyzer offers an automatic peak detection: touch the workspace icon (upper right corner the left white icon), choose “caption” -> peaks. Now the Analyzer shows the topmost 3 peak levels with corresponding frequencies. For getting detailed information about the frequency response of a system it’s great to use the Leq function. In combination with a stationary noise (pink or white noise) you’ll get a really good response in a minute. If you now store this Leq graph you can compare it to previous and / or future measurements.


  • Bruce K

    Replied on: 03/03/2013, 22:46

    Some calibration mics for iPhone/iPad come with unique serialized calibration files that work with some analyzer apps. Does your app support calibration files or is MicW the only external mic directly supported?

    • dan

      Replied on: 30/04/2013, 23:58

      At the moment we are offering freqeuncy compensations only for MicW Products. But we are working on cooperations with some other external mics as well – hopefully they will be available very soon. Calibration files are not supported.

  • Mike

    Replied on: 13/05/2013, 17:35

    Can I export screens showing logarithmic scale?

    • dan

      Replied on: 13/05/2013, 22:52

      The scales are logarithmic: they show dB (SPL or FS) on vertical scale (dB is logarithmic) and frequency (logarithmic) on horizontal scale. And if you export we don’t change this – every exported png or csv has logarithmic scale!


  • Mark

    Replied on: 01/08/2013, 03:26

    Does it measure the THD ?

    • dan

      Replied on: 09/08/2013, 17:50

      Hi Mark,

      the Analyzer can not directly measure THD but you can use it to analyze sine signals with non harmonic distortions.


  • Pat Maki

    Replied on: 01/10/2013, 11:56

    IOS 7 was just published. Is Analyzer 2 tested fully IOS 7 compatible.
    Did frequency response remain intact with IOS 7.

    • dan

      Replied on: 05/10/2013, 08:15

      Everything works fine with iOS7 if you udate the Analyzer to the new 2.3 version.


  • Ben

    Replied on: 25/10/2013, 13:22

    I can’t seem to get the app to work either with my micW i436 or with the onboard mic… Very frustrating

    • dan

      Replied on: 31/10/2013, 07:28

      Hi Ben,

      please make sure the Analyzer has access to the built-in microphone: go to Settings->Privacy->Microphone and enable the Analyzer access!


  • brandon

    Replied on: 13/11/2013, 18:38

    does this work well with iPad?

    • dan

      Replied on: 15/11/2013, 10:04

      Yes, on all iPads. But we recommend at least iPad2.


  • Igor

    Replied on: 27/12/2013, 13:15

    Programma don’t open. iPad 5.1.1

    • dan

      Replied on: 28/12/2013, 22:13

      Hello Igor,

      sorry for the trouble. There’s a problem with the Analyzer and iOS 5.1.1 which will be solved in the next Update (v2.3.1). It is already in review at iTunes, so it should not take more than a few days to get it all working again!


  • Curtis Lisch

    Replied on: 10/02/2014, 08:34

    Is it possible to fix the frequency scale whilst increasing the resolution of the amplitude. I.e. to be able to zoom in whilst being able to see the whole frequency spectrum. Also is it possible to more clearly mark the frequency scale.


    • dan

      Replied on: 08/04/2014, 22:35

      Hello Curtis,

      the zoom function appies always to both power and frequency. But you can try the lens function: touch and hold and you get it. It’s not possible to adjust the calse color but you can change the backgroundcolor and the color pf the graphs…#

      Best Daniel

  • J!

    Replied on: 18/02/2014, 17:44


    Great app!
    Is there a way for me to display an x-curve shape inside the analyzer?

    • dan

      Replied on: 06/03/2014, 23:37

      NOt yet but we will think about it!

  • Tom

    Replied on: 25/03/2014, 02:53

    Hi I’m a guitar builder and I’m thinking about buying you analyzer. I don’t have much experience with them. I want to be able to trigger the sampling by tapping my guitar and i want to be able to average 5 – 10 samples and display the frequency content of these averaged taps. Will your analyzer do this? Thanks!

    • dan

      Replied on: 08/04/2014, 22:21

      Hello Tom,

      as far as I understand you I don’t think the Analyzer can provide this…


  • Mike

    Replied on: 12/04/2014, 12:43

    Hi, Analyzer is not starting again on ipad 5.1.1 since the upate on 9/4/14


    • dan

      Replied on: 17/04/2014, 10:21

      We fixed this in Analyzer 2.3.5 which is in review at iTunes at the moment – should be available within the next few days.


  • Jonas

    Replied on: 22/04/2014, 18:58


    i wanted to know how i can connect my iphone 5 with the app too my fireface ucx… ?


  • Syd

    Replied on: 17/09/2014, 23:44

    Love the app and my apologies if this has been posted before. The app is not reading audio. I have checked my settings and the iPhone 5S mic is on in the app. I have cycled the phone on and off with no results. Oh wait I just plugged it into my computer. It is now responding. Any suggestions.
    Thanks Syd

    • dan

      Replied on: 22/09/2014, 23:16

      Hello Syd,

      we are not sure why this happens to some. This may help: turn off all other audio apps. Or switch the Analyzer off and on agian in settings – privacy – microphone.


  • Manuel

    Replied on: 24/09/2014, 13:33

    I’m considering to buy yor App Analyzer, but first i would like to know if it has been tested in the IPad III under iOS 8. I had a bad experience with other SPL and RTA analyzer, that after updating to IOS 8 has an erratic behavior likely because of problems with the internal mic calibration in this specific model
    Another question the in-App buy hardware options, like microphones is possible in Spain
    Please answer as soon as possible

    • dan

      Replied on: 24/09/2014, 22:00

      Hello Manuel,

      there are indeed problems with iOS 8 and calibration levels – but we solved them already: Analyzer 2.5 (iOS8 only) is already in review at iTunes and will be available in a few days (hopefully). The In App purchases are compensations for microphone frequency responses. They are available everywhere! And I don’t think it is a problem to buy the microphones in Spain…


  • Mika Koponen

    Replied on: 26/09/2014, 06:44

    When is iOS8 update coming?

    • dan

      Replied on: 26/09/2014, 07:48

      Hello Mika, we have the update for iOS 8 already in review at iTunes. It should be out there already but it seems the Apple people have other things on the list at the moment… We all need alittle patience there.

  • Manuel

    Replied on: 02/10/2014, 00:03

    After updating to iOS 8 the app worked fine. But after update to iOS 8.0.2 the screen freezes. No Mic input at all :NAN? What happens?

    • dan

      Replied on: 02/10/2014, 08:17

      Hello Manuel,
      please make sure that the Analyzer has access to the microphone in settings->Analyzer-> microphone. If it has access try this: – quit the Analyzer and all other audio apps by double pressing home button and up swipe.
      – go to settings -> Analyzer -> privacy -> microphone -> and turn allowance off.
      – start Analyzer again and quit it again.
      – turn allowance for microphone use on again.
      – restart the Analyzer

  • Fmb

    Replied on: 12/10/2014, 21:02

    Just purchased your app yesterday. It worked on my iPhone 6 for about a day. I notice a very large decrepancy between my iPad and iPhone 6 in regards to spl. The ipad was about 20 db higher than the new iPhone 6. I was under the impression that this app would work accurately with the iPhone 6 internal mic for spl. Did not seem accurate at all. I believe the ipad was accurate. Now the app does not show any sound at all on the iPhone 6. It works on iPad. I tried all of the suggestions as far as turning on and off the mic,app and so forth. Please advise or update. Thanks

    • dan

      Replied on: 15/10/2014, 11:36


      we are hunting a bug on iPhone 6: What is the Analyzer showing in Menu -> settings -> input&output? The calibration issue is on our list as well!

  • Adam

    Replied on: 30/10/2014, 18:46

    I’m running Analyzer on an iPhone 6. Was working fine but between tests the “response”, “weighting”, “hold”, “snapshot” etc. buttons along the bottom of the screen have disappeared. Not sure what I’ve done but how can I get them back?

    • dan

      Replied on: 31/10/2014, 11:42

      I think you touched the fullscreen icon in the bottom left corner (the 2 arrows). Just touch them again to go back to normal view.

  • Frede

    Replied on: 05/11/2014, 10:44

    I am looking for 2 changes of the CSV file.
    A choise of decimal separator ( Danish “,”)
    A posibility to limit the number of digits after the decimal separator
    Thank you!

    • dan

      Replied on: 13/11/2014, 20:33

      The separator can be changed in the Analyzer menu: settings -> export -> csv settings. The number of digits can unfortunately not be changed.

  • Calvin Kalyniuk

    Replied on: 06/12/2014, 04:29

    Just change my phone and put the app back in but can’t get any sound into the anayliser. It has acces to mic and it is turned on in the app and on the iPhone 5s but I get nothing. What do I need to do?

    • dan

      Replied on: 15/12/2014, 21:30

      Try to reinstall the Analyzer. If this doesn’t help play sound out of your builtin speaker (i.e. with the music App) and try again.

  • Rod

    Replied on: 16/01/2015, 15:45

    Is this app working now before I purchase for my iphone 4s and Ipad Air 2. Please email me or post comment here.

    • dan

      Replied on: 02/03/2015, 12:04

      Should work fine…

  • Stein

    Replied on: 21/02/2015, 00:34

    On my iPad 3 (ios 813) there is a very large decrepancy between built-in mic and headset-in with regards to the displayed levels . On my iPhone 4S (ios 813) the discreapancy is almost nonexistent.
    Also, it seems to me that the overall gain is fluctuating quite a lot on my iPad – the graph is bouncing up and down i a manner common to all frequencies. Is there a bug of unstable gain in the iPad app?
    Thirdly, I have experienced periods of heavy LF rolloff on my iPhone. It disappeared after closing the app with task manager and starting it again.
    Hopefully these buggy behaviours will disappear with a new version of the app.

    • dan

      Replied on: 02/03/2015, 12:00

      the level issues should be solved with newly available Analyzer v2.6. The occasional occurence of LF rolloff hints to unstable measurement mode. We never expereienced this before – do you use Audiobus?

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