Synthwaver vs PolyrhythmLab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synthwaver
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SYNTHWAVER: SOUND IN MOTION Step inside the sound. SYNTHWAVER is a spatial synthesizer for iPhone and iPad that turns pure tones, noise, frequency modulation, and movement into an instrument you can feel around you. Every voice travels through a three-dimensional orbit, giving drones and atmospheres a sense of direction and depth. Put on headphones, press play, and hear synthesis leave the flat plane. BUILD A WORLD, ONE VOICE AT A TIME Start with one synth, then add more to create layers of pitch, color, rhythm, and space. Each voice has its own frequency, level, orbit speed, tilt, noise, FM, and reverb. Let one tone circle slowly beneath a fast-moving signal. Blend a warm noise bed behind a cluster of pitches. Set every layer in motion, or hold movement still and focus on timbre. Complex spatial scenes stay approachable because every sound remains visible, independent, and immediately playable. SCULPT PITCH BY EAR OR BY NOTE Explore the audible range from 20 Hz to 20 kHz with a responsive frequency control. Use the one-octave keyboard for familiar notes, then shift across ten octave positions to reach the register you need. Indicators identify voices at a glance, while numerical readouts keep precise tuning close. Whether you are building intervals, beating tones, low-end rumbles, or glassy highs, pitch never feels buried in a menu. MAKE EVERY SOUND MOVE Movement is part of the synthesis engine. Set each voice to orbit from near stillness to 6.8 revolutions per second, then tilt its path through the Z-plane. High-quality HRTF headphone rendering creates a binaural field with changing position. Layer speeds and angles until simple waveforms become kinetic patterns: circling, crossing, separating, and reconnecting in space. GO BEYOND THE SINE Turn on frequency modulation for sidebands, metallic edges, animated basses, bells, buzzes, and unstable textures. Dial in the modulation index, choose a frequency in hertz or a musical ratio tied to the carrier, then refine it with coarse and fine controls. FM can add subtle shimmer or push far into complex territory. Each voice has its own settings, so one layer can remain pure while another fractures into rich motion. BLEND TONE, NOISE, AND SPACE Move from a clean oscillator to noise, or settle anywhere between them. Shape noise continuously from white to pink, from bright hiss to softer ambience. Then place each voice in one of ten acoustic spaces, including rooms, halls, chambers, plate, and cathedral, and set the wet/dry balance. Orbit, noise color, FM, and reverb make SYNTHWAVER at home creating test tones, evolving drones, cinematic atmospheres, strange machines, and abstract sound art. FAST, TACTILE, AND READY TO EXPERIMENT SYNTHWAVER keeps essential controls on the surface. Start or stop voices, minimize them into frequency chips, bring any synth forward, and stop the scene instantly from the master bar. Shape individual levels or adjust overall output. The interface adapts to portrait and landscape on iPhone and iPad, so it stays playable whether you are exploring on the couch, sketching with headphones, or presenting an idea. SAVE THE MOMENT When a combination clicks, save it as a preset. SYNTHWAVER remembers every voice and its playing state, pitch, spatial motion, FM, volume, noise, octave, and reverb. Open a scene later, continue shaping it, or build a library of drones, studies, and sonic environments. Move from discovery to a sound you can revisit. FOR CURIOUS EARS SYNTHWAVER is for musicians, sound designers, composers, students, educators, spatial-audio enthusiasts, and curious listeners. Study frequency relationships, explore modulation, design moving textures, build meditative soundscapes, or lose yourself in a strange orbit of your own making. No timeline. No maze of pages. Just sound, motion, and direct control. Your headphones are not just the output. They are the listening space. Create a voice. Set it in motion. Shape the air. Enter SYNTHWAVER.
PolyrhythmLab
Create complex, evolving musical rhythms and dynamic visual performances. This app offers a unique polyrhythmic engine for sound layers and a live visual mixer with customizable effects and camera controls. Export audio, MIDI, or video of your creations.
- True polyrhythm engine with independent step/pulse counts per layer
- AUv3 plugin support for DAWs like GarageBand and Logic
- Live MIDI output for driving external synths
- Integrated VJ mixer with audio-reactive visuals and effects
- Song mode for arranging patterns into full tracks
- Save and reload groovebox patterns and VJ setups as presets
- Export audio, MIDI, and video recordings
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PolyrhythmLab is a groovebox built around true polyrhythms: every sound layer gets its own step count, pulse count, and rotation, so layers of different lengths interlock and drift in and out of phase instead of locking to one shared grid. NEW IN 2.0 — AUv3 PLUGIN Use PolyrhythmLab as a real instrument inside GarageBand, Logic, AUM, and any other AU-compatible host. Four independent polyrhythmic layers, each exposed as automatable parameters, real MIDI output so your performance actually records as a MIDI region, and its own compact control panel with a live pattern wheel, a randomizer, and optional sync to your session's tempo. NEW IN 2.0 — LIVE MIDI OUTPUT Send a real Note On/Off for every layer hit straight from the main app — one MIDI channel per layer, over a virtual MIDI connection — to drive another synth, app, or piece of hardware in real time, not just sync tempo. NEW IN 2.0 — CAST VJ MIX Send the VJ Mix visuals to a TV or projector over AirPlay or a wired adapter, while your device keeps the full set of live controls. Save and reload VJ Mix setups — visual styles, effects, camera moves, and their LFOs — as named presets, same as patterns. GROOVEBOX • Euclidean-style rhythm engine — set steps, pulses, and rotation per layer • Drums, glitch/textural one-shots, classic synth voices (piano, bell, pad, bass), and melodic synth patches • Per-layer filter, reverb, delay, pitch, and LFOs on every parameter • Randomize engine biased toward musical, playable combinations • Chord modes, scales, and modal note selection for melodic layers SONG MODE Arrange your saved patterns into sections and chain them into a full song. VJ MIX A live visual performance surface: blend two audio-reactive visualizations, layer on real-time color and shader effects — RGB split, kaleidoscope, pixelate, glow, trail — and a 3D camera with zoom, pan, orbit, and tilt, each with its own LFO. Randomize the whole look by hand, or hand it to an autonomous "robot" that keeps remixing itself. Record the performance in real time via ReplayKit, or export a styled video clip. PRESETS Save and reload both groovebox patterns and VJ Mix setups as named presets. EXPORT Render your patterns and songs to audio, or export them as MIDI. No account, no ads, no analytics. Everything is stored locally on your device.
Screenshots
Verdict
The clearest difference is price: Synthwaver at $0.99 against PolyrhythmLab's $4.99. 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
Synthwaver costs $0.99 and PolyrhythmLab $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Synthwaver | PolyrhythmLab |
|---|---|---|
| Price | $0.99 — better | $4.99 |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 4 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 401 MB |
| Age rating | 4+ | 4+ |
| Developer | Richard Barber | Martin Adler |
In-app purchases
Synthwaver
No in-app purchases
PolyrhythmLab
No in-app purchases
Questions
Is Synthwaver free?
Is PolyrhythmLab free?
Do Synthwaver or PolyrhythmLab have ads?
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