OK, it is not the most powerful effect that I have...
Not enough parameters, windows...
So, it's not with this effect that you will be able to show off with your friend...
Despite this, if your goal is only to have a very versatile little effects ("It also simulates other types of effects such as complex filters, vocal morphing using formant filters, phase wah as well as tremolo and panning effects. "), easy to use, a cheap price and a irreproachable sound quality, you can watch the video demo below...

To conclude
I am a human ... influential like any human ...
Because of that I have a little hesitate...
Super App or Killer App ?
Then editing my video, I was able to listen again this little effect on my guitar ...
Why not a Killer App?
I love the sound...
I must first check the risks that I incur.
On the one hand I risk losing credibility in sound engineers and guitarists.
Well, I'm not a sound engineer and I'm not a guitarist either.... I am nothing... (Ah no.. Photographer.. The only diploma I got...
So I can get over it ...
On the other side, if I say it's a Killer App, I'll be able to put it away in my folder with all my Killer Guitars Apps effects and use it ..
What do I do?
A Killer App!!!
(All parameters can be controlled via MIDI)

Price$4.99 Author 4Pockets.com Type Effect Effect type Multi effects Supports Audio Unit (AU) Version1.03 Released 09/12/2018 Updated 02/08/2019

For technical specifications read the App Store description at the end of this post.
For "Whaooo, I love it" read these few lines.
I love this effect!
The quality of processing is definitely Awesome!
Just the saturation module is already great!
Honestly, watch the video, listen to the bass... It kills!
Now, even if this filter is for me one of the best in the Store, it is not the best...
There's an even better one!
30 times better!!!!!
This is the JAF Collection....
But, well, I'm lucky. I don't pay for my Apps...
So if you don't have the budget for the 30 filters, without hesitation, take this one...
100% sure you won't regret it.
To Killer App! A Must Have!
Translated with www.DeepL.com/Translator

Price $5.99 Author Jens Guel l TypeEffect Effect type Filter Supports Inter-App Audio (IAA), Audio Unit Version 1.4 Released 09/27/2019

Wahoooooooooooooooooooooooooooooooo !!!!
The sound quality of the samples is just awesome!!!
The samples length: Perfect!!!
The quality of the effects: awesome!!!

So, BarbaraDrums it's 21 Drum Kits!
20 acoustic kits and 1 electronic kit.
Over 180 multi-layer and one-shot instruments
​1 kit = 21 Drum sounds. Most of the time, we have 1 Kick, 3 Snares (1 sidestick | 1 openhit | 1 timbre off), 4 Toms, 1 Tambourine, 3 HH (Pedal) with a chock mode which can be controlled via MIDI, 5 Crash, 4 Ride, and 1 Cowbell
You can create your Custom kits and save the to the User library.

​For the effect section: Compressor + 4 Equalisers: (Low End: 20-250 Hz, Lower Midrange: 250-1000 Hz, Upper Midrange: 1-8 kHz, High End: 8-20 kH) + Pan, Tuner/Pitcher, Different reverbs/hall , Chorus & Delay

​BarbaXDrum comes with a MIDI learn and write function (Set in one time for all your kits)
​A built in Audio recorder
(Check out the App Store description below for all included features)

To conclude:
An exceptional sound quality.
Some sounds that you will nor easily find in another App (Snare timbre off, 4 Toms, Tambourine or HH pedal)
Great effects.
Over 180 multi layers on one shot instrument
=
An App for Pro!!!
A Killer App!!! A Must Have!!!

PS
Thanks for the thanks Ed!
(I know that I am a little mad, but I am not talking to me.... 🤪)

Price $13.99 Author Eduard Farkas Type Drum Expander / Pad Supports Inter-App Audio (IAA), Audiobus Version 1.5 Released 09/27/2019 Updated 10/08/2019

Moebius Lab is a laboratory.
A laboratory for Audio...
A very huge laboratory!!!!
17 effects!!!
11 slots for an AUv3 or IAA Apps !!
A Sampler / File player
A awesome monophonic Synthesizer!!!
A MIDI Keyboard which allows you to control the 11 others Apps that you added to the slots (If you choose to plug only Apps instead Effects)
A routing which allows you to route the Time Domain nodes to the Spectrum Domain nodes & vice versa...
And sure all the features that you can find in all Ape Apps (Snapshots Pad / Accelerometer /....)
​
Input module: Input or Sampler or Synth + 2 slots for an AUv3 or IAA App
Output module: Plate Reverb + Dynamic Processor + 1 slot for an AUv3 or IAA App
Time Domain Nodes: Exciter + Ringer + Klamper + Swarmer (Chorus) + Filter + Splitdel (Delay) + Reduktor + Shifter + Reverso + 8 slots for an AUv3 or IAA App
​Spectrum Domain Nodes: Brikwall Filter + Spectral runner (Spectral Delay with Feedback) + Grip (samples and holds spectral components of the incoming signal) + Blur (A (noisy) “spectral reverb) + Degrader (spectral decimator) + Flutter (a sort of animated brickwall)

What can we do with it?
So many things...
You can use it for the Awesome monophonic Synthesizer only
To built a loop
As a Mastering tool
To control all your synth from one place
The possibilities are infinites !
This App is Awesome!
A Killer App! A Must Have !

Price $12.99 Author Amazing Noises Type Synthesizer / Sampler / Multi Effects Supports Inter-App Audio (IAA), Audiobus )Version2.1 Released 06/29/2016 Updated 08/05/2019

In the Output Window you can activate two “post-Moebius” effects; a Reverb (“PlateVerb”) and a Dynamics Processor

PLATEVERB
As the name suggests this is a classic Plate Reverb In the Output Window
tap on the icon next to the “Output Gain” knob to show the PlateVerb Edit Window
Balance‘ with this parameter you can mix the dry and wet (reverberated) signals
Pre Delay‘ you can add a short delay to the reverb effect to separate it from the dry signal
Low Cut and High Cut" with these parameters you can equalize the sound before sending it to the reverberation circuit The equalizer doesn’t affect the dry sound
Pre Delay‘ you can add a short delay to the reverb effect to separate it from the dry signal
Low Cut and High Cut" with these parameters you can equalize the sound before sending it to the reverberation circuit The equalizer doesn’t affect the dry sound
Damping- with this parameter you can attenuate the high frequency reflections faster than the low frequency ones The higher the parameter is, the more high frequencies are attenuated
Size: the size of the reverberation space If you set this parameter to 1 and the Damping parameter to 0, you have an “almost infinite” reverb tail

DYNAMICS PROCESSOR
After the PlateVerb, you can change the output sound using a compressor and expander effect
This is used to either reduce or expand the dynamic range of an audio signal
The Dynamics Processor controls set high (compression) and low (expansion) threshold volume levels When the incoming audio is between these levels, it is left unchanged Audio that rises above the upper threshold is cut in volume to bring it back down to that level (compression) Audio that falls below the lower threshold is cut in volume to make quiet sounds even quieter (downward expansion)
​Additional controls adjust the attack and release time for the plugin's volume envelopes, the expansion ratio, the compression headroom, and a master gain to boost or cut volume on the Dynamics Processor’s output
Threshold: when the signal is above the threshold it is compressed
Headroom: upper limit for the compressor, a limiter prevents the signal to go above this threshold
Attack and Release‘ activation and de-activation times for the compression when it is above the threshold
Exp Threshold: when the signal is below the Exp Threshold it is backward expanded
Exp Ratio: expansion ratio

A ring modulator with distortion and feedback
Frequency: Frequency of the modulator
Freq/Pitch: you can set the modulator frequency in hertz or in MIDI note values
Shape: the shape of the modulator; 0 = sine, 1 = saturated sine
Lowpass" a low-pass filter for the ring modulation
Feedback‘ the amount of modulated signal sent back into the modulator

Clamps the signal with a few special features
Klamp Level- when the signal amplitude is above this level, it is “klamped”;
i e if the Klamp Level is 0 5, all signal values above 0 5, or below -0 5 are transformed according to the Mode parameter (see below)
Mode: you can choose among 6 modes of “klamping” for the signal exceeding the Klamp Level
Klamp- the signal is clipped
Fold‘ the signal is folded back into the limits
Wrap- the signal is wrapped in the opposite direction
Annihil- the signal is annihilated (reduced to O)
Sine- the signal is replaced with a sinusoidal oscillation
Square‘ the signal is replaced with a square wave oscillation
Oscil Freq: frequency parameter for the "Sine" and “Square” modes above
Split Freq: you can klamp the signal above or below the split frequency (see the Spec Balance below)
Split Freq: you can klamp the signal above or below the split frequency (see the Spec Balance below)
Spec Balance: when this parameter is 0, only the signal below the split frequency is klamped, when it is 1, only the signal above the split frequency is klamped
Other values cause different mixes of klamping above and below the split frequency
Normalize: the klamped signal can be normalized, i e raised to the level specified by the Norm Level parameter below
Norm Level: when the Normalize switch is on, this is the level for the klamped signal

A “superchorus”, excellent to create super fat synth sounds (and more) It is composed by a chain of modulated delay lines
Activity: how fast the delay lines are modulated
Depth: sets the amount of delay in the delay lines
Tank: this is the feedback parameter, sets the amplitude of the signal sent back to the circuit
Lowpass' a low-pass filter for the feedback signal.

The Filter node has two configurations-
Dub: dual low-pass high-pass state variable filter with resonance and overlap factor
Morph: a triple low-pass/band-pass/high-pass state variable filter with resonance and continuous morphing between the filter types
You can switch between the two configurations using the radio buttons on the right of the edit window
​Dub Parameters:
Cutoff‘ this parameter sets the cut off frequency and the filter type From -100 to 0 it is a low pass filter with cutoff frequency gradually increasing from 0 Hz to 15000 Hz, from 0 to 100 it becomes an high pass filter with cutoff frequency gradually increasing from 0 Hz to 15000 Hz
Overlap- the overlap factor influences the Filter behaviour When it is 0 the Filter parameter has the effect described above Increasing the overlap factor makes the two filter types (low pass and high pass) to gradually overlap (i e the high pass effect begins before the low pass section has completed its path), and when the overlap is at its maximum, the filter behaves like a band pass (because the low-pass and the high-pass sections have nearly the same cut off frequency)
Morph Parameters:
Frequency: from 10 to 11 000 Hz
Type: the filter type can be morphed gradually from low-pass (0) to band- pass (0 5) to high-pass (1)
Other Parameters:
Resonance‘ this is the amount of resonance the filter has at its cut off frequency
Order‘ this parameter gradually changes the filter order from 12 dB to 24 dB
Env Depth: this parameter sets the amount of variation the internal envelope follower has on the filter cutoff frequency
Env Speed: this parameter sets the speed of the envelope follower, i e how fast it follows the input signal amplitude

A dual band delay with feedback
The delay time can be expressed in milliseconds or in note values (1/4, 1/8, etc) To switch between the two, tap the chain on the upper right of the edit window
Split Freq: signal components below the split frequency are sent to Delay 1 the components above are sent to Delay 2
Delay 1: the delay time of the first delay line
Feedback 1: the feedback factor of the first delay line
Delay 2: the delay time of the second delay line
Feedback 2: the feedback factor of the second delay line

This node can be used to decimate and do other “bad things” to your signal
Bit Depth: you can change the bit depth of the signal
Resample: this parameter is a factor of the actual sampling rate' i e if the SR is 44100 Hz, a Resample of 0 5 would give a 22050 Hz sampling rate, o 1 would giv 4410 Hz and so on
int Freq: you can randomly interrupt your signal This parameter sets how many interruption statistically you have per second
Int Ratio: this is the ratio between the interruption and the sound If set to 0 5 the sound has the same duration of the interruption, if set to 0 1 the sound has 1/10 of the duration and the interruption 9/10 and so on
Int Amount: this is the depth of the interruption If it is 1 the sound is completely interrupted (silenced) If it is 0 5 the sound amplitude is halved during the interruption and so on
Single/Dual/Alternate Switch: Single = both channels are interrupted at the same time; Dual = the two channels are interrupted independently; Alternate = the cannels are interrupted alternatively
None/\Nhite/Pink Switch: None = during the interruption the sound is silenced; White = the sound is replaced with white noise; Pink = the sound is replaced with pink noise
Split Freq: you can decimate the signal above or below the split frequency (see the Spec Balance below).
Spec Balance: when this parameter is 0, only the signal below the split frequency is decimated, when it is 1, only the signal above the split frequency is decimated. Other values cause different mixes of decimation above and below the split frequency.

A dual band frequency shifter
Split Freq: the signal components below the split frequency are shifted by
Shift 1, the signal components above the split frequency are shifted by Shift
2
Shift 1: frequency shift parameter for the signal components below the split frequency
Shift 2: frequency shift parameter for the signal components above the split frequency
Shifter Stereo Flip- when this switch is on, the right channel shift parameters are inverted (Shift 2 for the lower frequencies and Shift 1 for the higher)

Plays the signal in reverse at regular rate
Switch Rate L/R‘ it is expressed in note values (1/4, 1/2 and so on) For each given value (e g 1/4), the first half (1/8) is played normally and the
second half (1/8) is played in reverse
Reverse Prob L/R: the probability that a segment is played in reverse
Inertia: the time it takes for the internal delay line to change the length of the reverse signal when the Switch Rate parameter is changed It afiects the pitch of the sound
Stereo Flip‘ when switched on, the reverse processing is applied independently (and with difierent parameters) to the two channels

StereoExplorer
"Would you like to hear only instrumental or vocal parts?
This amazing app lets you explore the stereophonic image of your music library songs:
• visualize the instruments placement
• isolate (solo) or remove (minus one) instrumental or vocal parts
• put your headphones on, the output is stereo
• on-the-fly processing of the songs stored in your device music library (no import)
results may vary, depending on the song stereo mix."

I love this App !!!
Very simple but so great...
You can listen some vocal part that you never listened before.
It will be great to have the AUv3 version of this App....

​A Killer App!!!

Price $1.99 Author Gino Quaglietta Type Stereo Image analyser Version 1.2.1

Price $9.99 Author Colin Hallet Type Synthesizer Supports IAA Audiobus AUv3 version 1.1

The App Store description...
​The new Version 3 of dreamSTATE's multimedia iAlbum of ever-changing ambient music and urban ambient art can now be used by both Listeners and iMusicians:

(1) For Listeners - A new infinite music arrangement is created for a unique sonic experience every time Ephemeral City is played.

Lose yourself in the endless drift of the ephemeral ambience, while walking through your own city, while reading, working, creating, thinking, relaxing or sleeping. This iAlbum can also play in the background while you read your e-mail or e-books or browse the net.

While Ephemeral City weaves a fresh musical arrangement for you every time, you can adjust the density of the mix from a rarefied atmosphere to a full-on flow or from the dark to the light. Set the Timer to define the length of the album. Adjust the speed of the visual transitions to reveal new fusion imagery.

(2) For iMusicians - Open Ephemeral City as an Inter-App Audio (IAA) Generator/Instrument in your favourite "host" applications (like Audiobus, Aum or apeMatrix) and process the infinitely evolving Ephemeral soundstream through your Effects apps to transform the audio into creative variations, for your own pleasure or for professional purposes.

Improvise or compose with the endless soundflow. Treat Ephemeral City as the ultimate textural drone oscillator. If you record your creations, dreamSTATE permit you to release your transformations under the most open creative commons attribution 4.0 license.

(Art) Place your iPhone or iPad in your speaker dock to display the evolving visual art of Scott M2's surreal cityscapes. Employ the mute button for a pure art experience or turn off your screen for a pure musical experience.

Trailblazing Canadian soundscape artists dreamSTATE (Scott M2 and Jamie Todd) created their first evolving ambient installation in 1996. Now, with the help of ReFla5h the Apptician, they've created an infinite multimedia ambient installation for your iPhone, iTouch or iPad (with iOS 8.0 or higher).

Welcome to a new paradigm for albums - experience Ephemeral City now.


Features:

- A Tour Guide page walks you through the controls - or just let the iAlbum play.

- The Control Panel gives you the option of adjusting the music mix and the speed of the visuals.

- An optional Timer can turn off the music after 15 minutes or up to 8 hours.

- Your Mix, Visuals and Timer settings are remembered between visits.

- A speaker icon mutes or restores the sound without adjusting volume buttons.

- The ambient art continues to evolve when the sound is muted.


- You can turn off the screen for long battery life during extended deep listening sessions.

- An Info section contains bios for the creators and links to more dreamSTATE music.

- Plays on any iPhone, iTouch or iPad with iOS 8.0 or higher.

- Works as an Inter-App Audio (IAA) Generator/Instrument within most audio "host" applications.

- Permission is granted by dreamSTATE for users to release their transformations and creations, even commercially, with appropriate attribution to dreamSTATE under a creative commons attribution 4.0 license.

- Headphones or quality speakers are recommended for the deepest immersive experience.

- "Help" contact address provided to report any problems so Refla5h can help address them. help@dreamstate.toVersion 3.1.1 release notesIn Version 3, support for Audiobus has been added, allowing Ephemeral City to be used as an IAA Instrument or Generator. Now Ephemeral City can weave endless dronescapes for you to experiment and transform with other apps inside "host" applications like Audiobus, AUM and apeMatrix. dreamSTATE have also granted a creative commons attribution 4.0 license to release your creative transformations for any purpose, even commercially. The Guide has been updated with the new features and creative commons information. Ephemeral City also remains a deep listening ambient experience.



To conclude:
I really rally love the ambient music generated....
I also love the visual.
I am a musician, so to use it ad a Drone engine is awesome...
I have only one little regret which is the lack of a landscape mode. When I am playing live I always play a video on a screen and it's too bad that I can not use it like this.
This is my only little regret...
A Super App!!!

Price $3.99 Author Neural Apparitions Type Instrument Instrument type Drone Support sInter-App Audio (IAA), Audiobus Version 3.1.1 Released 01/04/2015 Updated 11/30/2018

Beginner Acoustic Guitar is for real beginners.
The App is very simple.
18 videos: around 600 hours of lessons.
I watched all of them...
I was teaching guitar in France for Artist's children.
Yes! Me the worst guitar player that you can find in this Galaxy after 35 years of playing guitar everyday!!!

Yes, I've never taken a guitar lesson in my life...
And so it's me who will have to "judge" this App, or rather Marty...
!!!!
So, as you will have understood, I was a little afraid to review this App.
But in fact, after looking at all the lessons, I'm no longer afraid...
I think I can "judge" Marty!
Why?
Because I follow exactly the same steps when I teach someone guitar...
No difference' except the position of the pick in the hand....
So if I'm a Killer teacher, Marty's a Killer teacher!

In conclusion:
If you follow the 600 hours of lessons, no problem, you can start having fun with a guitar.
For me, it's perfect and if I miss this App of super App and not Killer App it's not because of Marty's classes.
It's just because, as I said at the beginning, Beginner Acoustic Guitar is very simple...
Not too much....
Very...
No metronome, built-in tuner, no pdf to check the chords...
No possibility to watch offline videos either.
Now it's absolutely no problem since all this Apps can be found for free on the app Store and the only important thing is that after watching these videos and practicing every day you can have fun with your guitar!
A great App

Price $4.99 Author Marty Schwartz Type Guitar Lessons version 1.0

Price Free / Offers in App Purchases Author Lulu Xie Type Keyboard SF2 file player Version 1.0

Price Free / Subscriptions Author Michael Krautsieder Type Chord on melody generator Version