# PLAYnJAM vs VAPolyMk4

The clearest difference is price: PLAYnJAM at Free against VAPolyMk4's $14.99. PLAYnJAM also leads on iOS requirement (13.4 vs 16.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

PLAYnJAM is free to download; VAPolyMk4 costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | PLAYnJAM | VAPolyMk4 |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vapolymk4/id6753038075/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Paid |
| Size | 147 MB | 20 MB |
| Requires iOS | **13.4** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [iDance](https://appshunter.io/developer/1680177485) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## What reviewers say

### PLAYnJAM

[App page](https://appshunter.io/ios/app/playnjam/id6447109498)

**In-app purchases:** none


### VAPolyMk4

[App page](https://appshunter.io/ios/app/vapolymk4/id6753038075)

This app is a powerful bi-timbral polyphonic synthesizer with advanced features like output morphing and a ring modulator. It offers extensive sound design capabilities with multiple oscillators, filters, and envelopes, and can be used standalone or as an AudioUnit Extension.

**Highlights:** Bi-timbral polyphonic synthesis, Output morphing and ring modulator, Multiple oscillators, filters, and envelopes, Standalone and AudioUnit Extension (AUv3) support, Built-in effects and piano roll sequencer, MIDI 2.0 and Ableton Link support, iCloud Drive for project sharing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PLAYnJAM free?

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

### Is VAPolyMk4 free?

VAPolyMk4 costs $14.99, with no in-app purchases.

### Do PLAYnJAM or VAPolyMk4 have ads?

Neither PLAYnJAM nor VAPolyMk4 shows ads.

### Which is updated more often, PLAYnJAM or VAPolyMk4?

PLAYnJAM ships an update every 2 months, and VAPolyMk4 every 2 months. Most recently, PLAYnJAM was updated on October 13, 2026 and VAPolyMk4 on October 18, 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.*