# Frequency Calculator vs Frequency Detector Analyzer

The clearest difference is in-app purchases: Frequency Calculator at none against Frequency Detector Analyzer's 2. Frequency Calculator also leads on iOS requirement (13.0 vs 15.0). Frequency Detector Analyzer's advantage is update cadence (every 2 months vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Frequency Detector Analyzer sells 2 in-app purchases, starting at $8.99 per 7 days. Frequency Calculator asks for nothing beyond the download.

Frequency Calculator ships an update every 6 months, Frequency Detector Analyzer every 2 months. Both last shipped on September 17, 2026.

## The numbers

| Metric | Frequency Calculator | Frequency Detector Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (17 ratings)](https://appshunter.io/ios/app/frequency-detector-analyzer/id6752298079/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 43 MB | 65 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [STAGE CODING, Travnik](https://appshunter.io/developer/1637068135) | [NEURASYNC](https://appshunter.io/developer/1639101560) |

## What reviewers say

### Frequency Calculator

[App page](https://appshunter.io/ios/app/frequency-calculator/id1619685242)

**Features:** macOS Compatibility

**In-app purchases:** none


### Frequency Detector Analyzer

[App page](https://appshunter.io/ios/app/frequency-detector-analyzer/id6752298079)

This application transforms your device into a precise sound analysis tool. It offers real-time frequency detection, visualization, and data logging for musicians, engineers, and curious individuals. Gain clarity and accuracy in understanding the soundscape around you.

**Highlights:** Live frequency tuner, Spectrogram visualization, Automatic logging and CSV export, Customizable logging interval, Elegant and modern design, Reliable performance

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Frequency Detector Weekly Sub | $8.99 | per 7 days |
| Frequency Detector Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Frequency Calculator free?

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

### Is Frequency Detector Analyzer free?

Frequency Detector Analyzer is free to download, with in-app purchases available.

### Do Frequency Calculator or Frequency Detector Analyzer have ads?

Neither Frequency Calculator nor Frequency Detector Analyzer shows ads.

### Which is updated more often, Frequency Calculator or Frequency Detector Analyzer?

Frequency Calculator ships an update every 6 months, and Frequency Detector Analyzer every 2 months. Most recently, Frequency Calculator was updated on September 17, 2026 and Frequency Detector Analyzer on September 17, 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.*