# VAPolyFMWest — FM Synthesizer

> FM and West Coast synthesizer with AUv3 support for iOS and Mac. (iPhone/iPad app by Ryo Togawa.)

- Source: https://appshunter.io/ios/app/vapolyfmwest/id6770355973 (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 3 App Store ratings
- Age rating: 4+
- Requires: iOS 16.6 · 19 MB
- Languages: American English
- Released: 2026-05-25
- Data updated: 2026-09-05
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/vapolyfmwest/id6770355973/reviews.md

## What is VAPolyFMWest?

VAPolyFMWest is a combination of FM and West Coast synthesis. It features 4 operator, 8 waveform, 8 algorithm FM synthesizer inspired by iconic rack mount FM synthesizer in 1980’s and wave folder and lowpass gate, which are key components of the west coast synthesis.  

VAPolyFMWest operates as a stand alone or as an AudioUnit Extension (AUv3) for iPhone, iPad and Mac. Stand Alone supports Ableton Link, MIDI and audio file export. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. 

Main Features

- FM Synthesizer
- 4 operators, 8 waveforms and 8 algorithms
- Wave folder and lowpass gate
- 3 channel analog style step sequencer.

- Maximum 8 voice polyphony. it depends on performance of the device it is running.
- Built-in effects and piano roll sequencer.
- Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC)
- Support Audio Unit Extension (AUv3).
- Support MIDI 2.0.
- Support Ableton Link, Bluetooth MIDI, MIDI In / Out.
- Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms.

- Support MIDI Foot Pedal (CC#11, CC#64)
- MIDI CC Settings are saved. It will be recovered when the app launched in the next time.
- UI Color can be selected from black, navy, gray, blown and red.
- Font size for title of controls are adjustable.

- Factory Preset 128
- Effects Preset 40

System Requirements

- iOS 17.0 or later
- Devices with Apple Silicon are recommended. A13 Fusion or above is highly recommended.
- 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. 
- Sound may be distorted if CPU of the device doesn't have enough power. If it happens reduce number of voices.

## Key features

- 4-operator FM synthesizer
- Wave folder and lowpass gate
- AudioUnit Extension (AUv3) support
- Ableton Link and MIDI connectivity
- Built-in delay, chorus, reverb, EQ, compressor
- 3-channel step sequencer
- iCloud Drive project sharing

## Chart rankings

- #193 in Top Paid · Music (US App Store)


## Frequently asked questions about VAPolyFMWest

### What synthesis types does VAPolyFMWest use?

VAPolyFMWest combines FM synthesis with West Coast synthesis techniques. It features a 4-operator FM engine and includes a wave folder and lowpass gate, key components of West Coast synthesis.

### Can VAPolyFMWest be used with other music software?

Yes, VAPolyFMWest operates as a standalone application and also as an AudioUnit Extension (AUv3). This allows it to be used within compatible host applications on iPhone, iPad, and Mac.

### What are the system requirements for VAPolyFMWest?

VAPolyFMWest requires iOS 17.0 or later. Devices with Apple Silicon, specifically A13 Fusion or above, are highly recommended for optimal performance. It is available on iPhone, iPad, and Mac.

### How does VAPolyFMWest handle project files?

Project files can be saved directly to iCloud Drive. This enables seamless access and continuation of your work across your iPhone, iPad, and Mac devices.

### Does VAPolyFMWest have built-in effects?

Yes, VAPolyFMWest includes a suite of built-in effects. These include delay, chorus, flanger, reverb, EQ, and a compressor, allowing for immediate sound shaping.

### What MIDI features does VAPolyFMWest support?

VAPolyFMWest offers extensive MIDI support, including Ableton Link, Bluetooth MIDI, and standard MIDI In/Out. It also supports MIDI 2.0 and can be controlled via MIDI Foot Pedal (CC#11, CC#64).

### How many voices can VAPolyFMWest play simultaneously?

VAPolyFMWest supports a maximum of 8 voice polyphony. The actual number of voices that can be played simultaneously depends on the processing power of the device it is running on.

### What audio export formats are available in VAPolyFMWest?

VAPolyFMWest allows for audio export in Linear PCM formats such as AIFF, WAV, and CAF. It also supports compressed audio export in AAC format.

## Version history (last 2 releases)

### 1.0.1 — 2026-05-29

Version 1.0.1 contains bug fixes and improvements.
- Fixed a problem of recording notes in piano roll editor.

### 1.0 — 2026-05-26

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 2026-09-05.*