# Spectrum Lab vs Frequency Detector Tool

The clearest difference is iOS requirement: Frequency Detector Tool at 15.0 against Spectrum Lab's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Spectrum Lab | Frequency Detector Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/frequency-detector-tool/id6786799596/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | — | Free |
| Size | 3 MB | 9 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [G-United](https://appshunter.io/developer/1885541302) | [Eye Heru](https://appshunter.io/developer/6786799838) |

## What reviewers say

### Spectrum Lab

[App page](https://appshunter.io/ios/app/spectrum-lab-audio-analyzer/id6760655721)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Spectrum Lab free?

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

### Is Frequency Detector Tool free?

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

### Do Spectrum Lab or Frequency Detector Tool have ads?

Neither Spectrum Lab nor Frequency Detector Tool shows ads.

---

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