# ThermVoltGe vs HarmonyAngel

The clearest difference is update cadence: HarmonyAngel at every 4 weeks against ThermVoltGe's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ThermVoltGe sells 1 one-off in-app purchase and HarmonyAngel sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ThermVoltGe ships an update every 2 months, HarmonyAngel every 4 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | ThermVoltGe | HarmonyAngel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Size | 28 MB | 7 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shoma Kondo](https://appshunter.io/developer/1884832972) | [Better World Studio](https://appshunter.io/developer/424394067) |

## 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 |


### HarmonyAngel

[App page](https://appshunter.io/ios/app/harmonyangel/id6794364693)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $9.99 | per year |
| Life-time Purchase | $19.99 | one-time |


## Frequently asked questions

### Is ThermVoltGe free?

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

### Is HarmonyAngel free?

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

### Do ThermVoltGe or HarmonyAngel have ads?

Neither ThermVoltGe nor HarmonyAngel shows ads.

### Which is updated more often, ThermVoltGe or HarmonyAngel?

ThermVoltGe ships an update every 2 months, and HarmonyAngel every 4 weeks. Most recently, ThermVoltGe was updated on October 25, 2026 and HarmonyAngel on October 25, 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.*