# ThermVoltGe vs Negative Harmony

The clearest difference is price: ThermVoltGe at Free against Negative Harmony's $2.99. Negative Harmony's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

ThermVoltGe is free to download; Negative Harmony costs $2.99 up front. ThermVoltGe sells 1 one-off in-app purchase. Negative Harmony asks for nothing beyond the download.

## The numbers

| Metric | ThermVoltGe | Negative Harmony |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 28 MB | 32 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

### ThermVoltGe

[App page](https://appshunter.io/ios/app/thermvoltge/id6774421537)

**In-app purchases (1)**

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


### Negative Harmony

[App page](https://appshunter.io/ios/app/negative-harmony/id6781442884)

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

**In-app purchases:** none


## Frequently asked questions

### Is ThermVoltGe free?

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

### Is Negative Harmony free?

Negative Harmony costs $2.99, with no in-app purchases.

### Do ThermVoltGe or Negative Harmony have ads?

Neither ThermVoltGe nor Negative Harmony shows ads.

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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.*