# Audio Frequency Analyzer vs Suritec FRED

The clearest difference is price: Suritec FRED at Free against Audio Frequency Analyzer's $9.99. Suritec FRED also leads on update cadence (every 4 days vs every 8 months) and iOS requirement (18.4 vs 26.2). Audio Frequency Analyzer's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Suritec FRED is free to download; Audio Frequency Analyzer costs $9.99 up front. Suritec FRED sells 1 in-app purchase, starting at $8.99 per month. Audio Frequency Analyzer asks for nothing beyond the download.

Audio Frequency Analyzer ships an update every 8 months, Suritec FRED every 4 days. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Audio Frequency Analyzer | Suritec FRED |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 0 MB | 111 MB |
| Requires iOS | 26.2 | **18.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [Suritec Systems GmbH](https://appshunter.io/developer/1854467922) |

## What reviewers say

### Audio Frequency Analyzer

[App page](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742)

This real-time audio analyzer measures and evaluates sound environments with 1/3 octave band frequency response and FFT analysis. It supports calibration for high accuracy and is suitable for various audio testing and tuning applications.

**Highlights:** Real-time frequency spectrum response measurement (1/3 octave, 30 bands), FFT Analyzer, Observation frequency range: 20 - 23000 Hz, Calibration function for high accuracy, Supports built-in and external microphones, Snapshot and averaging functions

**In-app purchases:** none


### Suritec FRED

[App page](https://appshunter.io/ios/app/suritec-fred/id6755539541)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monatliche Abrechnung | $8.99 | per month |


## Frequently asked questions

### Is Audio Frequency Analyzer free?

Audio Frequency Analyzer costs $9.99, with no in-app purchases.

### Is Suritec FRED free?

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

### Do Audio Frequency Analyzer or Suritec FRED have ads?

Neither Audio Frequency Analyzer nor Suritec FRED shows ads.

### Which is updated more often, Audio Frequency Analyzer or Suritec FRED?

Audio Frequency Analyzer ships an update every 8 months, and Suritec FRED every 4 days. Most recently, Audio Frequency Analyzer was updated on October 12, 2026 and Suritec FRED on October 2, 2026.

---

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