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The EQ-A based on Classic British EQ from the '70s. With a wide range of tonal variations, the EQ-A is an audio tool with great flexibility and sonic ability.

New version 3.0.2
Old version 3.0.1
Release Notes - Fixed inconsistent Routings switching bug. If you like EQ-A plug-in, please support us by rating this app in the App Store!
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

The Red Rock Sound SA60 real time 1/3 octave Spectrum Analyser combines ease of use, accuracy and versatility in one economical, reliable unit. Interface is modelled on classic DN60 spectrum analyser, originally developed in 1980.

New version 4.0.1
Old version 4.0.0
Release Notes - Fixed inconsistent Routings switching bug. If you like SA60 plug-in, please support us by rating this app in the App Store!
Author RRS, OOO
Type Tool
Supports Audio Unit (AU)

Does your bass sound dull and lifeless? Red Rock Sound Bass Enhancer will be your choice to correct this deficiency. Bass Enhancer designed for saturation harmonics of low-frequency, it creates the effect of lower, deeper frequencies. This effect can not be created with simple equalization.

New version 3.0.2
Old version 3.0.1
Release Notes - Fixed inconsistent Routings switching bug. If you like Bass Enhancer plug-in, please support us by rating this app in the App Store!
Author RRS, OOO
Type Effect
Effect type Bass effects
Supports Audio Unit (AU)

In the '80s it was the first to use a different approach to tonal adjustments. In conventional analog equalizers, whether they are shelving, sweepable, graphic or parametric types, various sections of the audio spectra are boosted or attenuated by adding or subtracting bandpasses. In this case, frequency shaping is achieved by summing bandpasses.

New version 3.0.2
Old version 3.0.1
Release Notes - Fixed inconsistent Routings switching bug. If you like EQ3 plug-in, please support us by rating this app in the App Store!
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

The EQ550 faithfully captures the punch, low-frequency transparency, and ultra-tight imaging of iconic American EQs of the late 1960’s.

New version 3.0.2
Old version 3.0.1
Release Notes - Fixed inconsistent Routings switching bug. If you like EQ550 plug-in, please support us by rating this app in the App Store!
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

Stage Traxx is an audio player designed for professional musicians working with backing tracks. With Stage Traxx 3, controlling your live performance will be easier than ever before.

New version 3.8.37
Old version 3.8.36
Release Notes FIXED * Possible deadlock when a song ends
Author Peter Dikant
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Audiobus

The EQP-1A based on Classic Program Equalizer from the '60s, original EQ is renowned for its unique ability to boost and cut the same frequencies simultaneously, thereby creating a resonant shelf, the EQP-1A faithfully models the overbuilt transformers and complex tube amplifiers of the original hardware.

New version 4.0.1
Old version 4.0.0
Release Notes - Fixed inconsistent Routings switching bug. If you like Passive EQ Collection plug-in, please support us by rating this app in the App Store!
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

The MEQ-5 based on Classic Mid-Range Equalizer from the '70s, with two bands of midrange boost and one band of midrange dip, the MEQ-5 gets the very best out of the «power region» where guitars and vocals can make or break a mix.

New version 4.0.1
Old version 4.0.0
Release Notes - Fixed inconsistent Routings switching bug. If you like MEQ-5 plug-in, please support us by rating this app in the App Store!
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

The EQP-1A based on Classic Program Equalizer from the '60s, original EQ is renowned for its unique ability to boost and cut the same frequencies simultaneously, thereby creating a resonant shelf, the EQP-1A faithfully models the overbuilt transformers and complex tube amplifiers of the original hardware.

New version 4.0.1
Old version 4.0.0
Release Notes - Fixed inconsistent Routings switching bug. If you like EQP-1A plug-in, please support us by rating this app in the App Store!
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

The EQ560 extends the features of the original hardware and joins the flexibility of the digital world to the character of the analog processing.

New version 3.0.2
Old version 3.0.1
Release Notes - Fixed inconsistent Routings switching bug. If you like EQ560 plug-in, please support us by rating this app in the App Store!
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)

Echo Pitch is a pitch-shifting multi-delay for iPhone.

New version 2.4
Old version 2.3.1
Release Notes -better volume/tone matching when bypassed -better integration with AUM/Audiobus -low latency/high latency toggle
Author Avi Bortnick
Type Effect
Effect type Reverb, Delay, Echo, Pitch effects
Supports Inter-App Audio (IAA), Audiobus

During a routine mining expedition in the outer regions of the galaxy five mysterious boxes of unknown origin were found. Rumours among the workers spread quickly that there was a strange feeling being around these boxes, as if time flows in a different way, not just forward but sometimes also folding back on itself. The miners nicknamed them, the five boxes of reverberation. After the excavation process, to study them more closely, it was decided to transport them back to earth.

New price $3.99
Old price $4.99
Author Erik Sigth
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

LumaFusion is a powerful multi-track video editor for mobile devices.

New price $19.99
Old price $29.99
Author Luma Touch LLC
Type Host
Supports Audio Unit (AU)

bs-16i is a 16 multi-timbral playback sampler. It supports SoundFont and DLS (Downloadable Sounds, and can be used for keyboard instrument, MIDI sound module, and MIDI player.

New version 5.0
Old version 4.7.4
Release Notes * Add Compressor effect as a new In-App Purchase option. You can try it before purchasing by choosing "Scenes > Compressor Demo". * Now iCloud Drive and local storage can be selected for each Scene. * Now files in iCloud Drive are automatically downloaded to your device when they are required. * Update and fully compatible with iOS 26 / iPadOS 26. Especially, flexible windowing is enabled on iPad. * No longer supports Inter-App Audio and Audio Bus * AUv3 is fully redesigned to support 16 multi-timbral and load multiple wave tables at once. Therefore, the new AUv3 can use Scenes created in the app. * The existing AUv3 remains, but it is renamed to "bs-16i legacy" and becomes deprecated.
Author bismark LLC
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)

A streaming sound palette for experimental musicians, sound designers and artists. Includes over 40 preset randomized Internet audio streams.  

New price $1.99
Old price $2.99
Author Casey I.T. LLC
Type Tool
Supports Inter-App Audio (IAA), Audio Unit (AU)

GlitchCore is an Audio Unit (AUv3) effect for re-sequencing live audio. It can rearrange audio that it processes. GlitchCore lets you glitch audio by making micro loops and scrubbing your sound.  

New price $2.99
Old price $4.99
Author Alex Matheu
Type Effect
Effect type Other
Supports Audio Unit (AU)

Sliver is a tool for soundscape and sonic texture creation.

New price $1.99
Old price $5.99
Author Alex Matheu
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Audiobus

Glitchbreaks is an iOS Universal manipulation tool for “Glitching” breakbeats.

New price $1.99
Old price $4.99
Author Alex Matheu
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Audiobus

Galileo Organ 2 is a tonewheel and transistor organ app.

New price $7.49
Old price $14.99
Author Yonac Inc.
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link

ToneStack PRO is a guitar effects processor.

New price $4.99
Old price $9.99
Author Yonac Inc.
Type Effect
Effect type Guitar effects
Supports Audio Unit (AU)