# IAP Control vs VAPolyFMWest

The clearest difference is price: IAP Control at Free against VAPolyFMWest's $14.99. IAP Control also leads on iOS requirement (12.0 vs 16.6). VAPolyFMWest's advantage is update cadence (every 4 days vs every 9 months). On ads, in-app purchases and device support there is nothing between them.

IAP Control is free to download; VAPolyFMWest costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

IAP Control ships an update every 9 months, VAPolyFMWest every 4 days. The most recent releases landed on October 26, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | IAP Control | VAPolyFMWest |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/vapolyfmwest/id6770355973/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 days** |
| Monetization | — | Paid |
| Size | 2 MB | 19 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Illusonic GmbH](https://appshunter.io/developer/958114228) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## What reviewers say

### IAP Control

[App page](https://appshunter.io/ios/app/iap-control/id1455969349)

**Features:** macOS Compatibility

**In-app purchases:** none


### VAPolyFMWest

[App page](https://appshunter.io/ios/app/vapolyfmwest/id6770355973)

This app combines FM and West Coast synthesis with a 4-operator FM engine and wave folder/lowpass gate. It offers a standalone mode with Ableton Link and MIDI support, plus an AudioUnit Extension for iOS and Mac. Includes built-in effects and a step sequencer.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is IAP Control free?

IAP Control is free to download, with no in-app purchases.

### Is VAPolyFMWest free?

VAPolyFMWest costs $14.99, with no in-app purchases.

### Do IAP Control or VAPolyFMWest have ads?

Neither IAP Control nor VAPolyFMWest shows ads.

### Which is updated more often, IAP Control or VAPolyFMWest?

IAP Control ships an update every 9 months, and VAPolyFMWest every 4 days. Most recently, IAP Control was updated on October 26, 2026 and VAPolyFMWest on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*