37 minBent Spool
Plastic FactoryFree, $9.99 unlock
Tremolo, pitched repeats and fragment loops with tape wear and chaos
Multi-FXModulationDelayPitchSaturationiOSiPadOS
Modulation apps (95)
Chorus, flanger, phaser, tremolo, vibrato and rotary effects.
95 modulation effects for iPhone and iPad, every one with a full hands-on video demonstration, priced from $1.99 to $29.99, 11 of them free. Prices are checked against the App Store rather than taken from the videos. There are no ratings or rankings here: watch the demo and judge for yourself.
Every modulation app in Jade's demos, on iOS, iPadOS and desktop, updated through 2026.Narrow this list by platform, instrument or price.
Featured
Paid placements, always labelled. They never change what an entry says.Details
Spot available
Put your app in front of people already looking for modulation effects.
Sponsor this spotSpot available
Put your app in front of people already looking for modulation effects.
Sponsor this spot
37 min
33 minFAC Gravity
Fred Anton Corvest$8.49
Spatial frequency shifter with a feedback spiral, delay and rotation
PitchModulationDelayiOSiPadOSmacOS
14 minDawgDelay-201 Tape Echo
DawgPound Audio$4.99
Three-head tape echo and spring tank with twelve routing modes
DelayReverbSaturationModulationiPadOS
29 minNovagrid
Mario Nieto$9.99
Four-lane step sequencer driving volume, pan, filter and bitcrush
Multi-FXEQModulationiPadOS
16 minPrism Delay
Luke Doyle$14.99
Eight-line modulated delay suite with per-line routing and sync
DelayModulationiPadOS
29 minDelayScaper
Rob Jackson$4.99
Dual stereo delay with envelope-driven modulation and an 8-second looper
DelayLooperModulationiOSiPadOSmacOS
19 minLeaf Light
Radii ResearchFree
Free ambient delay and noise effect shaped like a tree canopy
DelayModulationReverbiOSiPadOSmacOS
23 minMelthaven
Quantovox$2.99, $4.99 Pro unlock
Note-triggered phaser that restarts its sweep on every attack
ModulationEQiOSiPadOS
38 minMicroPitch
Eventide$9.99
Fine pitch detune with delays for thickening and width
PitchModulationDelayiOSiPadOS
38 min38 minTriceraChorus
Eventide$14.99
Three-band stereo chorus with detune and an envelope stage
ModulationiOSiPadOS
38 min
25 minWave Collider
Michael Kaisser$3.99
Blends two audio signals in 22 spectral, modulation, dynamics and math modes
Multi-FXModulationiPadOSmacOS
37 minRetroLab
4Pockets$14.99
Twelve vintage effect modules with three LFOs and a macro intensity dial
Multi-FXSaturationModulationDelayiOSiPadOSmacOS
21 minSpinBud
Cem Olcay$4.99
Rotary speaker effect with three band-split plates and stereo miking
ModulationiOSiPadOSmacOS
19 minMatthew Caldwell Free AUv3 Collection
Matthew CaldwellFree
Four free AUv3 effects: tremolo, tape delay, fuzz and spectral delay
Multi-FXDelaySaturationModulationiOSiPadOS
58 minVoxomat
Quantovox$7.99
Resonant lo-fi modulator that gives drums and bass vocal character
ModulationPitchiOSiPadOSmacOS
47 minFlangerLope
Rob Jackson$1.99
Envelope flanger with analog mode, LFO blend and stereo spread
ModulationiOSiPadOSmacOS
56 minTapeScam
Charles Vestal$3.99
Four-track cassette emulation with dropouts, wow, flutter and hiss
SaturationModulationiOSiPadOS
41 minFakeTake 2
Rob Jackson$1.99
Automatic double tracking with wider delay, drift and spread ranges
ModulationDelayVocaliOSiPadOSmacOS
55 minTransit 2
Baby Audio$29.99
Twenty-eight effect modules driven by macros, LFOs, followers and side chain
Multi-FXModulationiOSiPadOS
55 minGatelab 2
AudioModern$9.99
Gate and volume sequencer that also sends MIDI to other apps
SequencerModulationMIDIiPadOS
60 minFlangeII
Rob Jackson$1.99
Dual stereo flanger with series, parallel and four intensity modes
ModulationiOSiPadOSmacOS
54 minBig Swarma
Audiority$14.99
Voice multiplier and feedback unit that turns any input into detuned swarms
PitchModulationiOSiPadOS
50 minPhaseII
Rob Jackson$1.99
Dual stereo phaser with series and parallel routing plus drive
ModulationiOSiPadOSmacOS
42 minGhostChorus
Simon Alexander$9.99
Chorus and reverb in one, with a side chain and depth control
ModulationReverbiOSiPadOS
53 minEchoFlower
Simon Alexander$9.99
Analog-style delay with a stereo widener, chorus, flanger and reverb
DelayModulationReverbiOSiPadOS
56 minPulseRipper
Simon Alexander$9.99
Tremolo pulse and tube distortion with sidechain input control
SaturationModulationiOSiPadOS
56 minSkulptur
Bram Bos and Hainbach$12.99
Ten-band performance filterbank with kinetic sliders and touch animation
EQModulationiOSiPadOSmacOS
54 minBLEASS Tides
BLEASS$14.99
Modulated delay with a feedback effects rack and three LFOs
DelayModulationMulti-FXiOSiPadOS
56 minFakeTake
Rob JacksonFree
Automatic double tracking from a short delay, spread and drift
ModulationDelayVocaliOSiPadOS
56 minLoFiFx
Rob Jackson$1.99
Lo-fi effect stack with crunch, wobble, sway, reverb and an LFO
Multi-FXSaturationModulationiOSiPadOS
56 minValkure Guitar Organ
Yonac$19.99
Plays polyphonic organ from guitar audio, without guitar to MIDI conversion
SynthAmp simModulationiOSiPadOSmacOS
54 minDimChorus
Rob JacksonFree
Button operated dimension chorus with three modes and three tones
ModulationiOSiPadOS
54 minLcrChorus
Rob Jackson$1.99
Three voice chorus with separate left, centre and right rates
ModulationiOSiPadOS
54 min54 minWobulator
Rob Jackson$1.99
Stereo chorus with a wobble control that varies rate and depth
ModulationiOSiPadOS
64 minShapeStage
Cem Olcay$6.99
Morphing multi-effect: drive, drift, delay, width and texture across four stages
Multi-FXModulationDelayiOSiPadOSmacOS
34 minJazz Chorus Guitar Amplifier
Nembrini Audio$9.99
Solid state clean amp model with onboard chorus, pedals and cabs
Amp simModulationiOSiPadOS
31 minGalaxy Brain
Sketch AudioFree, $9.99 unlock
Frequency shifter and delay with LFO and sequencer modulation
PitchDelayModulationiOSiPadOSmacOS
25 minComeback Kid
Baby Audio$19.99
Vintage-flavoured delay with tape, lo-fi and ducking on the repeats
DelaySaturationModulationiOSiPadOS
24 minMagicFilter
GSDSP$29.99
Four drawable spectral filter curves with eight modulators and an XY pad
EQModulationiOSiPadOSmacOS
15 minAB Chorus X
Audio Brewers$5.99
Stereo chorus with independent left and right rate and depth
ModulationiOSiPadOS
20 minGospel Rotary
Gospel Musicians$14.99
Modelled Leslie 145 cabinet with mic angles and split horn EQ
ModulationAmp simiPadOSmacOS
26 minGSDSP Quantum Filter
GSDSP$14.99
Three analog-modelled filters with a deep modulation matrix
EQModulationiOSiPadOS
19 minFAC Fizzica
Fred Anton Corvest$9.99
Audio-rate modulation adding digital noise textures to a signal
SaturationModulationiOSiPadOSmacOS
18 minAries Rotary Speaker & Amp
Yonac$14.99
Six rotary cabinets and six tube amps with mic placement control
ModulationAmp simiOSiPadOSmacOS
23 minModnetic
Surreal Machines$9.99
Tape delay, spring reverb and bucket brigade modulation in one unit
DelayReverbModulationiOSiPadOS
59 minRingotron
Quantovox$12.99
Two-band parallel ring modulator with stereo phase and resonant filtering
ModulationEQiOSiPadOS
57 minKingB Organ
Yonac$24.99
Modelled tonewheel organ with three manuals, rotary cabinet and effects
SynthModulationAmp simiOSiPadOS
60 minDub Filter
AudioThing$14.99
Stepped high pass filter modelled on King Tubby's Altec big knob
EQModulationiOSiPadOS
61 minGSDSP Quantum Distortion
GSDSP$14.99
Drive, ring mod, bit crusher and downsampler blended on an XY pad
SaturationMulti-FXModulationiOSiPadOS
60 minAB Astrometry X
Audio Brewers$12.99
Four-tap delay with per-tap viscosity, free time and serial or parallel routing
DelayModulationiOSiPadOS
61 min501 Chorus Echo
Nembrini Audio$8.99
Tape echo, BBD chorus and spring reverb in one modelled unit
DelayModulationReverbiOSiPadOS
63 minGSDSP Quantum Delay
GSDSP$14.99
Tape and digital delay with filters, feedback and a modulation matrix
DelayModulationEQiOSiPadOS
60 minThings - Motor
AudioThing$6.99
Rotor effect combining tremolo, vibrato and panning with sidechain morphing
ModulationiOSiPadOS
61 minRealPhase
Quantovox$14.99
Four-stage analog-modelled phaser with composite LFOs and mid-side stereo control
ModulationiOSiPadOS
46 minab Phaser X
Audio Brewers$5.99
Phase modulator with two to twelve stages and split stereo rates
ModulationiOSiPadOS
80 minTransit
Baby Audio$29.99
Eighteen effect modules in seven slots, driven by one macro dial
Multi-FXModulationiOSiPadOS
60 minBLEASS Fusion
BLEASS$9.99
Waveshaping distortion where a wavetable sets the saturation curve
SaturationModulationiOSiPadOS
102 minMF-102S Ring Modulator
Moog Music$14.99
Moogerfooger ring modulator with carrier oscillator, LFO and drive
ModulationPitchiOSiPadOS
102 minMF-103S 12-Stage Phaser
Moog Music$14.99
Moogerfooger phaser switchable between six and twelve stages
ModulationiOSiPadOS
102 minMF-107S FreqBox
Moog Music$14.99
Voltage controlled oscillator driven and synced by the incoming signal
SynthModulationiOSiPadOS
102 minMF-108S Cluster Flux
Moog Music$14.99
Chorus, flanger and short delay from one modulated bucket brigade line
ModulationDelayiOSiPadOS
59 minSuper VHS
Baby Audio$19.99
Five one-knob lo-fi effects: chorus, saturation, reverb, crush and drift
Multi-FXSaturationModulationiOSiPadOS
60 minsumFX
OSC Audio$9.99
Modular eight-slot effects rack with two LFOs on every slot
Multi-FXModulationEQiOSiPadOS
59 minCascade
Phonolyth$7.99
Reverb and diffusion processor for wide, modulated, evolving spaces
ReverbDelayModulationiOSiPadOS
59 minMantis
AudioThing$14.99
BBD echo with four taps, four swell selectors and Rotafaze modulation
DelayModulationiOSiPadOS
58 minK7D
Imaginando$3.99
Vintage tape delay with LFOs, linked filters, wow and flutter
DelayModulationSaturationiOSiPadOS
71 minChoric
Caelum Audio$11.99
Chorus with up to 32 voices, pitch shifting and formant preserve
ModulationPitchiOSiPadOS
53 minFilterjam
AudioThingFree
Multi-band resonant filter that sums or multiplies four bands
EQModulationiOSiPadOS
57 minPanflow
AudioModernFree
Pattern-based auto-panner with drawable shapes, randomization and MIDI out
MixingModulationiOSiPadOS
73 minDoubler
Nembrini Audio$7.99
Real time doubler that widens guitars, vocals, synths and drums
ModulationMixingiOSiPadOS
64 minFlux Pro
Caelum Audio$11.99
Multi-FX with four slots driven by three drawn modulation graphs
Multi-FXModulationiOSiPadOS
63 minPopsicle FX
Kai Aras$12.99
Dual-engine multi-effects rack with an XY pad and recordable motion
Multi-FXModulationiOSiPadOS
63 minBLEASS Phase Mutant
BLEASS$8.99
FM effect that modulates any input, as AUv3 or standalone
Multi-FXModulationiOSiPadOS
57 minMagic Switch
Baby AudioFree
One-button chorus voiced after the Juno-60 analog chorus
ModulationiOSiPadOS
60 minTimeless 3
FabFilter$24.99
Tape-style delay with drawable taps, five effects and deep modulation
DelayModulationMulti-FXiPadOS
79 minVolcano 3
FabFilter$24.99
Four-node creative filter with drag-and-drop modulation and drive
EQModulationSaturationiOSiPadOS
58 minTorero
Julien Faure$7.99
Sampled 1972 Italian organ with Leslie, overdrive and a split keyboard
InstrumentModulationiOSiPadOS
65 minBLEASS Dragonfly
BLEASS$7.99
Tremolo driven by MIDI note, playing dynamics or a side chain
ModulationiOSiPadOS
64 minShimmer
4Pockets$3.99
Shimmer reverb combining delays, pitch shifting, modulation and a harmonic exciter
ReverbPitchDelayModulationiOSiPadOS
51 minPerforator
Bram Bos$3.99
Rhythmic gate that cuts sustained sounds into stepped patterns
SequencerModulationiOSiPadOS
60 min
45 minFly Tape 2
MSXII Sound Design$5.99
Momentary cassette effects: speed, reverse, warble, lo-fi and stutter
SaturationMulti-FXModulationiOSiPadOS
59 minTape Pro
Caelum Audio$7.99
Tape channel with saturation, cassette noise, wow, flutter and delay
SaturationMulti-FXModulationDelayiOSiPadOS
56 minBLEASS Motion FX
BLEASS$7.99
Motion sequencer that draws step patterns into one effect at a time
Multi-FXSequencerModulationiOSiPadOS
55 minFAC Chorus
Fred Anton Corvest$9.99
Dual-delay chorus with stereo width, mono input switch and bass boost
ModulationiOSiPadOS
61 minPhaseDelayArray
Neon SiliconFree
Array of phase and delay effects stepped through moon phases
Multi-FXModulationDelayiOSiPadOS
38 minFlux Mini
Caelum AudioFree
Drawn shapes that modulate amplitude, low pass and high pass
ModulationEQiOSiPadOS
52 minBLEASS Slow Machine
BLEASS$6.99
Speed sequencer that slows audio over a set loop length
PitchSequencerModulationiOSiPadOS
50 minEG ClassicFX
Elliott Garage$3.99
Eight classic effects in one AUv3 rack with multi-bus outputs
Multi-FXModulationReverbDelayiOSiPadOS
62 minAU3FX:Dub
Kymatica$5.99
Preset bank of dub delays, choruses, flangers and resonators
DelayModulationMulti-FXiOSiPadOS
59 minSaturn 2
FabFilter$24.99
Multiband saturation and distortion with modulation on every control
SaturationMulti-FXModulationAmp simiPadOS
60 minBLEASS Saturator
BLEASS$6.99
Five stage saturator with waveshaper, bit crusher and an LFO
SaturationMulti-FXModulationiOSiPadOS