# Frequency Analyzer vs Fauna Mapper

The clearest difference is in-app purchases: Fauna Mapper at none against Frequency Analyzer's 11. Fauna Mapper also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.2). Frequency Analyzer's advantage is update cadence (every 8 days vs every 3 weeks). On price and ads there is nothing between them.

Both are free to download. Frequency Analyzer sells 11 in-app purchases, starting at $2.99 per 7 days. Fauna Mapper asks for nothing beyond the download.

Frequency Analyzer ships an update every 8 days, Fauna Mapper every 3 weeks. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Frequency Analyzer | Fauna Mapper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (169 ratings)](https://appshunter.io/ios/app/frequency-analyzer/id6468837339/reviews)** | — |
| Number of ratings | **169** | — |
| Positive reviews | 10.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 69 MB |
| Requires iOS | 17.2 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Manfred Kuegel](https://appshunter.io/developer/1520736594) | [Mach2](https://appshunter.io/developer/1581604407) |

## What reviewers say

### Frequency Analyzer

[App page](https://appshunter.io/ios/app/frequency-analyzer/id6468837339)

Transform your device into a professional audio analysis tool with advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.

**Highlights:** Real-time FFT analysis, Calibrated SPL measurements, 32-bit float audio recording, Synchronized video recording, Spectrogram and octave band analysis, Export WAV, CSV, images, and videos

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Frequency Analyzer Pro Weekly | $2.99 | per 7 days |
| Frequency Analyzer Pro Monthly | $3.99 | per month |
| Frequency Analyzer Pro Monthly | $3.99 | per month |
| Frequency Analyzer Pro Monthly | $4.99 | per month |
| Frequency Analyzer Pro Monthly | $4.99 | per month |
| Frequency Analyzer Pro Monthly | $4.99 | per month |
| Frequency Analyzer Pro Annual | $29.99 | per year |
| Frequency Analyzer Pro Annual | $44.99 | per year |
| Frequency Analyzer Pro Annual | $44.99 | per year |
| Frequency Analyzer Pro Annual | $44.99 | per year |
| Pro access for lifetime | $89.99 | one-time |


### Fauna Mapper

[App page](https://appshunter.io/ios/app/fauna-mapper/id6759609621)

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

**In-app purchases:** none


## Frequently asked questions

### Is Frequency Analyzer free?

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

### Is Fauna Mapper free?

Fauna Mapper is free to download, with no in-app purchases.

### Do Frequency Analyzer or Fauna Mapper have ads?

Neither Frequency Analyzer nor Fauna Mapper shows ads.

### Which is updated more often, Frequency Analyzer or Fauna Mapper?

Frequency Analyzer ships an update every 8 days, and Fauna Mapper every 3 weeks. Most recently, Frequency Analyzer was updated on October 12, 2026 and Fauna Mapper on October 11, 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.*