VAPolyMk3 vs QuadroSphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VAPolyMk3
This polyphonic synthesizer offers multi-synthesis capabilities inspired by classic analog synths. Explore subtractive and modular FM synthesis with extensive oscillator routing, built-in effects, and an analog-style sequencer. Save projects via iCloud for seamless cross-platform use.
- Multi-synthesis (Subtractive & FM)
- 3 Oscillators + 3 Modulation Oscillators
- Resonant Low/High Pass Filters
- Analog Style CV Sequencer
- Built-in Effects (Delay, Chorus, Reverb, etc.)
- Audio Unit Extension (AUv3) Support
- iCloud Project Sync
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VAPolyMk3 is a multi synthesis polyphonic synthesizer for iPhone, iPad and Mac. Inspired by the last generation of classic analog synthesizers in the late 1980’s such as Oberheim Matrix series synthesizers, It offers Subtractive Synthesis and modular FM Synthesis. It operates as a stand alone or as an AudioUnit Extension (AUv3). Stand Alone supports Ableton Link, MIDI and audio file export. Oscillator Section features 3 Oscillators and 3 Modulation Oscillators. Each Oscillator has envelope and amplifier. Oscillators can be routed for Subtractive Synthesis and FM Synthesis. Signal from Oscillators are routed to mixer, resonant low pass filter, resonant hight pass filter and amplifier. The synthesizer also features two ADSR envelopes per voice, two LFO and analog style sequencer. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. VAPolyMk3 also includes sequencer which features piano roll editor and parameter automation. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. Main Features 3 oscillators and 3 modulation oscillators can be routed for Subtractive Synthesis and FM Synthesis. Analog Style CV Sequencer. Maximum 8 voice polyphony. it depends on performance of the device it is running. Built-in effects and sequencer. Support MIDI 2.0. Support Foot Pedal (CC#11, CC#64) and Per Note Control. Support Audio Unit Extension (AUv3) Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) Support Ableton Link, Bluetooth MIDI, MIDI In / Out. Option to turn off anti-aliasing for devices with less CPU power. Include 271 Factory Presets. System Requirements iOS 17.0 or later This app requires a lot of CPU power. Devices with Apple Silicon or equivalent A series chip are recommended. A13 Fusion or above is highly recommended. If sound is distorted when using a device with less CPU power, turn Anti-Aliasing-Option off or reduce number of voices. AudioUnit Extension (AUv3) requires host application which support AudioUnit Extension. AudioUnit Extension is supported by Apple Logic and Apple Garage Band on iOS and macOS. For any other DAW, it depends on the application and some of them don’t support AudioUnit Extension.
QuadroSphere
This audio plugin allows musicians to sculpt immersive soundscapes by controlling stereo placement and effects across four distinct frequency bands. Create dynamic, atmospheric audio with automated movement and morphing between saved settings.
- 4 configurable frequency bands
- Control stereo separation, level, and pan per band
- Create and morph between 12 snapshots
- Modulation control for automated sweeps
- Per-band effects (Haas, Delay, Reverb, Chorus, Compressor)
- Convert mono to pseudo-stereo
- MIDI CC control
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QuadroSphere is a great tool for bringing an instrument to life by creating a soundscape with a constantly moving sound source. QuadroSphere splits the incoming audio signal into 4 distinct coloured frequency bands using the frequency bar. Each band has an associated coloured sphere allowing you to control the pan, stereo separation and volume level. You can use this plugin as a way to impose subtle control over stereo placement with little or no movement, or go crazy with random automation. Adding effects such as reverb or delay on a specific frequency band can help create a lush atmospheric swirling which surrounds the listener. This is great for musicians trying to create minimalistic ambient or tranquil soundscapes. You can create up to 12 snapshots of the sphere parameters and effect settings, then morph between them at a designated speed (measured in beats). You can also enable continuous randomization mode, and have full control over which spheres and control which parts are automated. You can also use QuadroSphere as a stereo splitter, using the additional outputs to add your own effects to band outputs. Key Features: ○ 4 Configurable frequency bands. ○ Control stereo separation, level and pan for each band. ○ Create up to 12 Snapshots. ○ Morph between various panning, width and frequency band levels. ○ Modulation control for automated sweeps around pan center. ○ Convert MONO signals into a pseudo-stereo image. ○ Per band Haas, Delay, Reverb, Chorus and Compressor. ○ Allows combined and individual per-band audio outputs. ○ Continuous randomized morphing of the stereo field. ○ Built in Preset Manager with drag and drop support. ○ Power and Solo for each band. ○ Controlable morph speeds. ○ Various animated transition modes. ○ Access most options using AU parameters or MIDI CC control.
Screenshots
Verdict
The clearest difference is review sentiment: QuadroSphere at 100% against VAPolyMk3's 50%. QuadroSphere also leads on rating (5.0 vs 4.5) and price ($7.99 vs $14.99). On ratings volume, ads, in-app purchases and monetization model 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
VAPolyMk3 costs $14.99 and QuadroSphere $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
QuadroSphere holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 6 and 10 respectively. Written reviews point the same way: 50% of VAPolyMk3's written reviews are positive against 100% of QuadroSphere's.
VAPolyMk3 ships an update every 7 months, QuadroSphere every 3 weeks. The most recent releases landed on September 20, 2026 and September 30, 2026 respectively.
| Parameter | VAPolyMk3 | QuadroSphere |
|---|---|---|
| Price | $14.99 | $7.99 — better |
| Rating | 4.5 (6 ratings) | 5.0 (10 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 | 10 — better |
| Update frequency | Every 7 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Togawa | 4Pockets.com |
Customer experience
VAPolyMk3
QuadroSphere
In-app purchases
VAPolyMk3
No in-app purchases
QuadroSphere
No in-app purchases








