# Frequency Analyzer vs Microdyno

The clearest difference is review sentiment: Microdyno at 100% against Frequency Analyzer's 10%. Microdyno also leads on in-app purchases (none vs 11) and device support (3 vs 1). Frequency Analyzer's advantage is price (Free vs $8.99) and update cadence (every 8 days vs monthly). On ads there is nothing between them.

Frequency Analyzer is free to download; Microdyno costs $8.99 up front. Frequency Analyzer sells 11 in-app purchases, starting at $2.99 per 7 days. Microdyno asks for nothing beyond the download.

Frequency Analyzer ships an update every 8 days, Microdyno monthly. Both last shipped on September 30, 2026.

## The numbers

| Metric | Frequency Analyzer | Microdyno |
| --- | --- | --- |
| Price | **Free** | $8.99 |
| Rating | **[4.5 (168 ratings)](https://appshunter.io/ios/app/frequency-analyzer/id6468837339/reviews)** | — |
| Number of ratings | **168** | — |
| Positive reviews | 10.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Monthly |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 35 MB | 108 MB |
| Requires iOS | 17.2 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Manfred Kuegel](https://appshunter.io/developer/1520736594) | [Stefan Hurzlmeier](https://appshunter.io/developer/969804263) |

## 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 |


### Microdyno

[App page](https://appshunter.io/ios/app/microdyno/id6749821546)

Transform your iPhone into a professional dynamometer. This app uses advanced audio analysis to precisely measure vehicle performance and torque in real-time without expensive hardware. It offers detailed vehicle profiles, weather integration, and professional data visualization.

**Highlights:** Real-time performance measurement (PS, Nm, RPM, speed), Over 100 pre-configured vehicle profiles, Automatic weather data integration for correction, Harmonic editing for cleaner results, Professional data visualization and export, Customizable vehicle profile creation, Measurement history tracking

**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 Microdyno free?

Microdyno costs $8.99, with no in-app purchases.

### Do Frequency Analyzer or Microdyno have ads?

Neither Frequency Analyzer nor Microdyno shows ads.

### Which is updated more often, Frequency Analyzer or Microdyno?

Frequency Analyzer ships an update every 8 days, and Microdyno monthly. Most recently, Frequency Analyzer was updated on September 30, 2026 and Microdyno on September 30, 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.*