# SDRFE Spectrum Analyser vs SpectralScan Audio Analyzer dB

The clearest difference is in-app purchases: SDRFE Spectrum Analyser at none against SpectralScan Audio Analyzer dB's 1. SpectralScan Audio Analyzer dB's advantage is iOS requirement (15.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SpectralScan Audio Analyzer dB sells 1 one-off in-app purchase. SDRFE Spectrum Analyser asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SDRFE Spectrum Analyser | SpectralScan Audio Analyzer dB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (18 ratings)](https://appshunter.io/ios/app/spectralscan-audio-analyzer-db/id6762024331/reviews)** |
| Number of ratings | — | **18** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 16 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [XionLogic Limited](https://appshunter.io/developer/1855294139) | [Otsukare AB](https://appshunter.io/developer/1892516192) |

## What reviewers say

### SDRFE Spectrum Analyser

[App page](https://appshunter.io/ios/app/sdrfe-spectrum-analyser/id6758634671)

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

**In-app purchases:** none


### SpectralScan Audio Analyzer dB

[App page](https://appshunter.io/ios/app/spectralscan-audio-analyzer-db/id6762024331)

Transform your device into a professional audio analysis tool. Visualize sound in real-time with a high-resolution spectrum, perform precise sine sweep measurements, and analyze frequency content over time. Save, compare, and export your audio data.

**Highlights:** Real-time frequency spectrum visualization, Sine sweep measurements for system response, Spectrogram for time-frequency analysis, Comparison and overlay of multiple measurements, Export data as CSV or PNG, Pro features for advanced analysis

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpectralScan Pro | $9.99 | one-time |


## Frequently asked questions

### Is SDRFE Spectrum Analyser free?

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

### Is SpectralScan Audio Analyzer dB free?

SpectralScan Audio Analyzer dB is free to download, with in-app purchases available.

### Do SDRFE Spectrum Analyser or SpectralScan Audio Analyzer dB have ads?

Neither SDRFE Spectrum Analyser nor SpectralScan Audio Analyzer dB shows ads.

### Which is updated more often, SDRFE Spectrum Analyser or SpectralScan Audio Analyzer dB?

SDRFE Spectrum Analyser ships an update every 9 days, and SpectralScan Audio Analyzer dB every 9 days. Most recently, SDRFE Spectrum Analyser was updated on October 15, 2026 and SpectralScan Audio Analyzer dB on October 25, 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.*