VU202 FX vs PolyQuad
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VU202 FX
This audio effect plugin brings the character of a sampler engine to your iOS music production workflow. Apply gritty resampling, lo-fi textures, and unique tone shaping to drums, loops, vocals, and more within your AUv3 host.
- AUv3 audio effect integration
- Sampler engine character
- Four tone shaping modes (HIFI, STANDARD, LOFI, LOFI2)
- Flexible input routing (LEFT, RIGHT, MONO, STEREO)
- Six-slot effects chain
- Extensive list of available effects
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VU202 FX brings the sound and behavior of the free VU202 app into your AUv3 workflow. It uses the same VU202 engine, rebuilt as a compact audio effect for producers who want that crunchy sampler character directly inside their favorite iOS host. Run drums, loops, synths, vocals, or whole buses through the VU202 signal path. Shape the tone with four character modes: HIFI, STANDARD, LOFI, and LOFI2. Choose LEFT, RIGHT, MONO, or STEREO input routing, set pad-style volume, then build your own six-slot effects chain. Available effects include Pitch, Pitch Free, Filter LP, Filter HP, Filter BP, EQ Low, EQ Mid, EQ High, Comp, Drum Comp, Limit, Delay, Tape Delay, Flanger, Phaser, Reverb, Ring Mod, and Vinyl Sim. Use it for gritty resampling color, lo-fi drums, filtered breaks, unstable tape-style echoes, pitch-shifted textures, crushed mono grooves, animated modulation, vinyl wear, and simple SP-style tone shaping without leaving your AUv3 session. VU202 FX is not a generic clean effect. It is made to give your audio the attitude of the VU202 engine: direct, rough, musical, and fast to control.
PolyQuad
Create complex analog-style synthesizer sounds using four independent voices. Design each voice with its own oscillator, filter, and envelopes, then combine them in various modes for massive layered textures, polyphonic chords, or unique stereo arrangements. Explore a vast library of presets or build your own from scratch.
- Four independent analog-style voices
- Multiple oscillator and filter types per voice
- Dual envelope generators per voice
- Three voice combination modes (UNI, POLY, 2x2)
- Extensive LFO modulation capabilities
- Integrated effects unit (reverb, delay, chorus, phaser, drive)
- 160 factory presets and user preset management
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PolyQuad is one synthesizer built from four complete voices — and the instrument is what they make together. Each of the four channels is a full analog-style voice: its own oscillator, its own resonant filter, its own envelopes, its own amplifier, its own place in the stereo field. Design each channel for a role — a sub, a body, a sparkle, a slow swell — then play them as one. Three voice modes decide how they combine. UNI stacks all four on every note for one massive layered sound. POLY spreads chords across the channels, so every note of a chord lands on its own instrument. 2×2 plays note pairs on matched couples. Add glide, retrigger control and detune spread on top. THE CHANNELS - Four oscillators: triangle, sawtooth, pulse with PWM, sine — per channel, with octave and fine tune - Four resonant filters with envelope amount and FM depth per channel - Two envelopes per channel (filter and amp), each with three time ranges from snappy to minutes-long - Per-channel VCA with velocity amount and curve, level, pan, AUX send, solo and mute - Per-channel oscilloscope displays, and keys that light up with the voice that took them MOTION - Four LFOs with five shapes, routed to pitch, pulse width, filter FM, resonance, amplitude, pan or send - Each channel decides how much modulation to accept — one LFO can wobble one channel and leave another still - One effect unit — reverb, delay, chorus, phaser, drive — fed by per-channel AUX sends with a master return PRESETS - 160 factory presets in eight categories: Pads, Keys, Strings, Bass, Lead, Drone, Texture, Percussion - Every preset uses the four channels as four different instruments — layered stacks, rotating timbres, per-drum kits - Channel presets: capture one channel's design and load it into any channel of any patch - Your presets are plain JSON files in the Files app — back them up, share them, drop new ones in IN THE STUDIO - AUv3 instrument for AUM, Drambo, Logic Pro, GarageBand and other hosts - MIDI 2.0 with 16-bit velocity; MIDI 1.0 hosts are translated automatically - Every knob on the panel is a host parameter — full automation and session recall - Standalone app with keyboard, so it plays on its own too No account, no ads, no tracking, no network. Your sounds stay on your device.
Screenshots
Verdict
The clearest difference is price: VU202 FX at $0.99 against PolyQuad's $6.99. VU202 FX also leads on iOS requirement (15.0 vs 17.0). On rating, ratings volume, ads and in-app purchases 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
VU202 FX costs $0.99 and PolyQuad $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for VU202 FX against 5.0 for PolyQuad. Both are backed by a comparable volume of ratings — 2 and 3 respectively.
| Parameter | VU202 FX | PolyQuad |
|---|---|---|
| Price | $0.99 — better | $6.99 |
| Rating | 5.0 (2 ratings) | 5.0 (3 ratings) |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 | 3 — better |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 10 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Dariusz Chynek | LASZLO DOBROVOLSZKI |
Customer experience
VU202 FX
PolyQuad
In-app purchases
VU202 FX
No in-app purchases
PolyQuad
No in-app purchases









