# ThermVoltSilicon vs Frequency Detector Tool

The clearest difference is in-app purchases: Frequency Detector Tool at none against ThermVoltSilicon's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ThermVoltSilicon sells 1 one-off in-app purchase. Frequency Detector Tool asks for nothing beyond the download.

## The numbers

| Metric | ThermVoltSilicon | Frequency Detector Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/frequency-detector-tool/id6786799596/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Monetization | — | Free |
| Size | 28 MB | 9 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shoma Kondo](https://appshunter.io/developer/1884832972) | [Eye Heru](https://appshunter.io/developer/6786799838) |

## What reviewers say

### ThermVoltSilicon

[App page](https://appshunter.io/ios/app/thermvoltsilicon/id6777894972)

**In-app purchases (1)**

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


### Frequency Detector Tool

[App page](https://appshunter.io/ios/app/frequency-detector-tool/id6786799596)

Instantly analyze musical keys from any frequency in Hertz. It displays the corresponding musical note, cents deviation, and whether it's in key with your selected musical scale. Features vocal context notes and a full frequency chart for EQ guidance.

**Highlights:** Frequency to musical note conversion, Cents sharp/flat indication, In-key analysis for selected keys, Nearest cut candidate identification, Vocal context notes for EQ, Full frequency chart exploration, Solfeggio frequencies with associations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ThermVoltSilicon free?

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

### Is Frequency Detector Tool free?

Frequency Detector Tool is free to download, with no in-app purchases.

### Do ThermVoltSilicon or Frequency Detector Tool have ads?

Neither ThermVoltSilicon nor Frequency Detector Tool 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.*