# ThermVoltTube vs PolyrhythmLab

The clearest difference is price: ThermVoltTube at Free against PolyrhythmLab's $4.99. PolyrhythmLab's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

ThermVoltTube is free to download; PolyrhythmLab costs $4.99 up front. ThermVoltTube sells 1 one-off in-app purchase. PolyrhythmLab asks for nothing beyond the download.

## The numbers

| Metric | ThermVoltTube | PolyrhythmLab |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 27 MB | 204 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shoma Kondo](https://appshunter.io/developer/1884832972) | [Martin Adler](https://appshunter.io/developer/1896354791) |

## What reviewers say

### ThermVoltTube

[App page](https://appshunter.io/ios/app/thermvolttube/id6777901033)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ThermVoltTube Full Version | $4.99 | one-time |


### PolyrhythmLab

[App page](https://appshunter.io/ios/app/polyrhythmlab/id6806714489)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ThermVoltTube free?

ThermVoltTube is free to download, with in-app purchases available.

### Is PolyrhythmLab free?

PolyrhythmLab costs $4.99, with no in-app purchases.

### Do ThermVoltTube or PolyrhythmLab have ads?

Neither ThermVoltTube nor PolyrhythmLab shows ads.

---

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