# VAPolyMT — Bi-timbral Synthesizer

> Bi-timbral polyphonic synthesizer with step sequencer and AUv3 support. (iPhone/iPad app by Ryo Togawa.)

- Source: https://appshunter.io/ios/app/vapolymt/id6743886961 (this page in markdown: same URL + `.md`)
- Developer: [Ryo Togawa](https://appshunter.io/developer/1474193056)
- Category: Music
- Price: $5.99 (on sale, was $14.99)
- Rating: 5.00/5 from 4 App Store ratings
- Age rating: 4+
- Requires: iOS 16.6 · 18 MB
- Languages: American English
- Released: 2025-04-16
- Data updated: 2026-09-08
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/vapolymt/id6743886961/reviews.md

## What is VAPolyMT?

VAPolyMT is a bi-timbral polyphonic synthesizer for iPhone, iPad and Mac. It features analog style step sequencer per timbre and assignable macro controls. It operates as a stand alone or as an AudioUnit Extension (AUv3).  Stand Alone supports Ableton Link, MIDI and audio file export.

Each synthesizer consists of two oscillators, mixer, resonant  low pass filter, resonant  hight pass filter and amplifier. The synthesizers can be layered or can be split.

Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. VAPolyMT 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

Bi-timbral polyphonic subtractive synthesizer.
Analog Style Step Sequencer per timbre.
Eight Assignable Controllers.
Maximum 8 voice polyphony. it depends on performance of the device it is running.
Built-in effects and piano roll sequencer.
Support Audio Unit Extension (AUv3).
Support MIDI 2.0. Support Foot Pedal and Per Note Control.
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.
Include more than 200 Factory Presets.

Improvements
Support MIDI Foot Pedal (CC#11, CC#64)
Support MIDI2.0 Per Note Control Messages
MIDI CC Settings are saved. It will be recovered when the app launched in the next time.

System Requirements

iOS 17.0 or later
macOS 14.0 or later
Devices with Apple Silicon are recommended. A13 Fusion or above is highly recommended. if sound is distorted when using a device with less CPU power, 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.

## Key features

- Bi-timbral polyphonic synthesizer
- Analog-style step sequencer per timbre
- Assignable macro controls
- AudioUnit Extension (AUv3) support
- Ableton Link and MIDI support
- iCloud Drive project sharing
- Built-in effects and piano roll editor


## Frequently asked questions about VAPolyMT

### What is VAPolyMT?

VAPolyMT is a bi-timbral polyphonic synthesizer application available for iPhone, iPad, and Mac. It offers advanced features like analog-style step sequencers and assignable macro controls for sound design and music creation.

### Does VAPolyMT support AudioUnit Extension (AUv3)?

Yes, VAPolyMT fully supports AudioUnit Extension (AUv3), allowing it to be used within compatible Digital Audio Workstations (DAWs) on iOS and macOS, such as Apple Logic and GarageBand.

### What are the system requirements for VAPolyMT?

VAPolyMT requires iOS 17.0 or later for iPhones and iPads, and macOS 14.0 or later for Macs. Devices with Apple Silicon, particularly A13 Fusion or above, are recommended for optimal performance.

### Can I share VAPolyMT projects between devices?

Yes, VAPolyMT supports iCloud Drive, enabling you to save and access your project files seamlessly across your iPhone, iPad, and Mac devices.

### What audio export formats does VAPolyMT support?

VAPolyMT allows audio export in Linear PCM formats like AIFF, WAV, and CAF, as well as compressed formats such as AAC.

### How many voices of polyphony does VAPolyMT offer?

VAPolyMT supports a maximum of 8 voices of polyphony, though the actual performance may vary depending on the device's processing power. Users can reduce the number of voices if sound distortion occurs on less powerful devices.

### Does VAPolyMT have ads?

No, VAPolyMT does not contain advertisements. As a paid application, it provides an uninterrupted user experience focused on music creation.

### What is the price of VAPolyMT?

VAPolyMT is available for a one-time purchase price of $5.99. This grants you full access to all its features without any additional subscription fees or in-app purchases.

## Version history (last 2 releases)

### 1.0.1 — 2026-03-27

Version 1.0.1 contains improvements and bug fixes.
- This version contains bug fixes and improvements.
- Fixed a problem of midi note input monitoring.
- Fixed a problem that text color and background color of text input field displayed as white in some circumstances.

### 1.0 — 2025-04-17

No release notes.

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## More apps by Ryo Togawa

- [VADrumSM](https://appshunter.io/ios/app/vadrumsm/id1474193057)
- [ChannelEqualizer](https://appshunter.io/ios/app/channelequalizer/id1513527511)
- [ChStrip](https://appshunter.io/ios/app/chstrip/id1518510831)
- [TfxEcho](https://appshunter.io/ios/app/tfxecho/id1523777426)
- [TfxMod](https://appshunter.io/ios/app/tfxmod/id1524639578)
- [TfxReverb](https://appshunter.io/ios/app/tfxreverb/id1529840178)

All apps by Ryo Togawa: https://appshunter.io/developer/1474193056

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*