Comparison

Wavimus vs Phase Modulator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Wavimus

Read full description

Wavimus is a deep wavetable synthesizer for iPhone and iPad (iOS 18+). Optimized for touch, Wavimus offers crisp stereo output for mobile musicians, sound designers, and producers looking for advanced synthesis workflows standalone or inside an iOS DAW. Standalone App & AUv3 Plug-In Deploy Wavimus in two distinct configurations that seamlessly share user presets: • Standalone App: A full-screen production environment with an on-screen mini keyboard, real-time output oscilloscope waveform display. • AUv3 Instrument Plug-In: Connect inside compatible hosts like GarageBand or AUM. It appears natively as "Wavimus”. Advanced Oscillators & Morphing • Three Wavetable Oscillators (WT 1–3): Features level, coarse/fine tuning, octave offset, and phase modes (restart on note-on or free-running). Morph across 64 frames (256 samples per bank) manually or via automatic scan sweeps with variable LFO shapes. • 21 Procedural Banks: Morph across characteristic timbres including Sine→Saw, Tri→Square, Glass additive, Warm drive, Beating detune, Odd harmonics, PWM brass, Formant choir, Fold ice, Phase warp, Step crush, Sub grind, FM metal, Pulse ripper, Fold hell, Ring comb, Sync tear, Crush scrape, Reso skream, Chaos stairs, and Growl sub. • Sub & Noise: Dedicated sine-based sub layer for bass weight and a customizable noise oscillator (white, pink, brown). Includes independent ADSR+hold amp envelopes per oscillator slot. ZDF Filters & Modulation Matrix • Dual ZDF Filters: Independent virtual-analog style filter modules (Filter A and B) with zero-delay feedback topology and non-linear drive saturation. Includes low-pass, high-pass, band-pass, and notch modes (12/24 dB slopes), logarithmic cutoff mapping (20 Hz–22 kHz), resonance, key tracking, pre/post drive, and series/parallel routing. • 64-Slot Mod Matrix: Up to 64 many-to-many routes with bipolar depth. Sources include LFOs 1-3, envelopes (amp/mod 1-3), velocity, mod wheel, pitch bend, performance macros 1-4, and pressure (poly/channel aftertouch). Targets include pitch, levels, wavetable positions, filter settings, LFO rates, effect mix, and delay tape speed. Multi-Effects & Parametric EQ • Dedicated Global FX: Includes a global Delay (ping-pong/tape types with mix, time, feedback, tape speed), an 8-channel FDN algorithmic Reverb with modulated delay reads for lush tails, and Distortion (bitcrusher, saturator, tape). • 5-Slot Serial Effects Chain: Chorus, Flanger, Phaser, Modulation-style EQ, and a Compressor. • Master Parametric EQ: An 8-band EQ separate from the serial chain with an interactive curve display, 2x oversampling high-quality mode, and stereo, left/right, or mid/side routing. Polyphony, MPE & Randomization • Voicing & Stacking: Up to 16 voices with poly/mono/legato voicing modes, portamento/glide, and unison stacking up to 16 detuned voices with stereo spread. • Master Processing: DSP master soft limiting features polyphony-aware gain scaling to safely minimize clipping on chords. • Sound Design Dice: Global patch randomization across three intensities (Nice, Medium, Chaos) plus per-oscillator module dice targeting related routes. • Integration & Styles: Optional MPE mode with per-note pitch bend, timbre, and pressure expression alongside standard Core MIDI input. Supports dark or light theme options with 18 custom accent color presets.

About

Phase Modulator

This app generates complex audio textures and tones by manipulating the phase of a carrier oscillator with a modulating signal. It offers two distinct modes: internal oscillator-to-oscillator modulation or using your audio input as the modulation source. Explore a wide range of sonic possibilities from shimmering harmonics to dense, inharmonic spectra.

Highlights
  • Phase modulation synthesis
  • Internal carrier and modulator oscillators
  • Audio input as modulation source
  • Adjustable carrier and modulator frequencies
  • Modulation index control
  • Selectable oscillator waveforms
  • Amplitude tracking of input audio
Features
Read full description

PHASE MODULATOR Phase modulation perturbs the running phase of a carrier oscillator with a modulating signal. Sweeping the phase back and forth generates a series of sidebands above and below the carrier, spaced by the modulator frequency, whose number and strength grow with the Index. This is the same technique behind classic FM synthesis: small index values add a little harmonic shimmer; large values produce dense, clangorous, often inharmonic spectra. The carrier you hear is always an internal oscillator. What changes between modes is where its phase modulation comes from. ------ CONTROLS: CAR FREQ Frequency of the carrier oscillator, 20 Hz to 20 kHz. This is the audible tone in both modes. CAR AMP Level of the carrier oscillator before the Output gain. MOD FREQ Frequency of the internal modulator oscillator, 20 Hz to 20 kHz. Active in Osc + Osc only. The carrier-to-modulator frequency ratio sets the harmonic character: integer ratios give harmonic, pitched tones; non-integer ratios give bells and metallic, inharmonic results. In Input + Osc the modulator comes from your audio instead, so this control is inactive. MOD AMP Level of the modulation source before it reaches the phase. Together with Index it sets how far the carrier phase is pushed; think of it as a trim ahead of the Index multiplier. INDEX Modulation index, 0 to 10. The headline control: peak phase deviation in radians equals Index times the modulation signal. At 0 the carrier passes clean; raising it brings in progressively more sidebands and brightness. OUTPUT Makeup gain after the effect, -24 dB to +36 dB. No limiter follows this stage, so watch your meters when boosting. WAVEFORM Carrier oscillator shape: Sine, Saw, Triangle, or Square. Sine is the classic FM voice. The richer shapes already contain harmonics, so phase modulating them produces denser spectra and reacts more aggressively to Index. MOD WAVE Modulator oscillator shape (Osc + Osc mode only): Sine, Saw, Triangle, or Square. Changes the harmonic character of the modulation itself. In Input + Osc mode the modulation comes from your audio, so this picker is inactive. FOLLOW Input + Osc only. With Follow On (the default) the carrier tracks the amplitude of your incoming audio: it speaks only while signal is present and falls silent when the input does, so the plugin behaves like an effect rather than a constant tone. With Follow Off the carrier runs continuously at its set level regardless of input, which suits drones and sustained textures. In Osc + Osc there is no input to follow, so this control is inactive. ----- MODES: OSC + OSC Both carrier and modulator are internal oscillators, set by Car Freq and Mod Freq. Classic two-operator FM with no input required, good for bells, electric pianos, and metallic drones. INPUT + OSC Your track's audio becomes the modulation source, perturbing the phase of the internal carrier oscillator. Note that what you hear is the carrier shaped by your audio, not the audio itself passed through; the input controls the timbre rather than being processed in place. Mod Freq does not apply in this mode. This is the default mode. ------ A NOTE ON ALIASING Phase modulation can scatter energy well above Nyquist, so the effect runs internally at four times the host sample rate and filters on the way back down. At extreme Index settings with the saw or square carrier some residual aliasing can remain; lower the Index or the carrier frequency if you hear gritty, detuned overtones.

Screenshots

Wavimus4 screens
Phase Modulator4 screens

Verdict

The call

The clearest difference is price: Phase Modulator at $1.99 against Wavimus's $14.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Wavimus costs $14.99 and Phase Modulator $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 8 level
Wavimus versus Phase Modulator: the parameters behind the verdict, then further details
ParameterWavimusPhase Modulator
Price$14.99$1.99 — better
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size6 MB8 MB
Age rating4+4+
DeveloperSEAN IAN HALENWOODCallback Audio, LLC

In-app purchases

None

Wavimus

No in-app purchases

None

Phase Modulator

No in-app purchases

Questions

Is Wavimus free?
Wavimus costs $14.99, with no in-app purchases.
Is Phase Modulator free?
Phase Modulator costs $1.99, with no in-app purchases.
Do Wavimus or Phase Modulator have ads?
Neither Wavimus nor Phase Modulator shows ads.

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