This is a AUv3 compatible analyser / tuner which can be used as plugin with your favourite DAW such as Cubasis, Meteor, Auria or GarageBand.

This plugin can be used directly within your DAW to analyse either the monitored input signal from your audio device or your mixer output. It uses Apple's accelerate framework to perform fast high resolution 8K fast fourier transformations to display a real time frequency spectrum. The result is an accurate representation of the sampled sound broken down into its frequency components.

You can use this plugin in conjunction with equalisers and parametric filters to obtain a nice flat mix or eliminate hard to find unwanted noise or hiss.

Various display modes include, linear narrow band, logarithmic narrow band, Octave, 1/3 Octave, 1/6 Octave and Mixer Mode with selectable ANSI A and C weighting curves. Up to 64 times oversampling can be applied to obtain more stable readings.

This plugin also includes a Digital Tuner mode which allows real time note detection, frequency and cents deviation from true pitch.

This is one of a suite of AUv3 compatible plugins which will also soon be available from 4Pockets.

What’s New

Version 1.4

Fixes the compatability issue with iOS9.3

Ratings and Reviews

3.6 out of 5
11 Ratings

11 Ratings

MigFTR ,

Analyzer/Tuner is great, but need HELP!

I use the analyzer to find the tune of my samples and I used to use the tuner which is a guessing game due to complex harmonics of most samples. I noticed you added a “note detect” feature but can’t find anything on the web on how it’s used. Is the green color dot the dominant tone? I figure the numbers on the y axis are the octave, but how do I know the root note of the sample? What do the other color dots mean?

Developer Response ,

The note detection was something recommended to me by one of my users that wanted to be able to visualise chords rather than single notes. Using this view you can see the individual notes and octaves.

The problem as you rightly pointed out is that notes are not pure tones, and contain lots of harmonics. A sine wave is a pure tone and is easy to distinguish, but something like a guitar string or piano are very complex and its hard to determine the fundamental note.

The display uses colours of hue to determine the loudest signal (red, orange, yellow, green, blue, indigo, violet), so violet/purple is the strongest note. If you are playing single notes and see more than a single orb glowing it is due to harmonics, which can at times be louder than the fundamental note.

I hope this helps.

TBMisamazing ,

Very responsive

This is pretty awesome, and responds very well to the input with hardly any lag. The different modes are nice for various applications. It pretty much does what you would want it to, like momentarily freezing the display, etc. My only wish is that you were able to zoom in on the frequencies to narrow the span of frequencies shown on the graph, especially in linear mode.

Camilo Calvo ,

The tuner doesn’t works well

I´ve tried the tuner mode to get in tune my guitar but it simply is not accurate and you can’t be secure about its medition. That makes me ask you, does the LUFS meter works well? I use it in the master to know the loudness of my tracks but I really don’t know if it is accurate. Thank you for reading.

P.S: Please add a oscilloscope mode!

Developer Response ,

Thanks for the feedback. The tuner should be very accurate, only its better on simple tones than ones with lots of harmonics since it wasn't designed for this purpose. Yes, the LUFS should be pretty accurate and yes, I will consider adding an oscilloscope mode.


Limelight Software
13.3 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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