# Spectrum Analyzer+ Audio FFT vs SpectralScan Audio Analyzer dB

The clearest difference is rating: SpectralScan Audio Analyzer dB at 4.9 against Spectrum Analyzer+ Audio FFT's 2.3. SpectralScan Audio Analyzer dB also leads on ads (none vs shown) and ratings volume (12 vs 3). Spectrum Analyzer+ Audio FFT's advantage is in-app purchases (none vs 1). On price and update cadence there is nothing between them.

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

SpectralScan Audio Analyzer dB holds the better App Store score, 4.9 against 2.3. Both are backed by a comparable volume of ratings — 3 and 12 respectively.

Spectrum Analyzer+ Audio FFT ships an update weekly, SpectralScan Audio Analyzer dB every 9 days. The most recent releases landed on October 3, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Spectrum Analyzer+ Audio FFT | SpectralScan Audio Analyzer dB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/spectrum-analyzer-plus-audio-fft/id6760830858/reviews) | **[4.9 (12 ratings)](https://appshunter.io/ios/app/spectralscan-audio-analyzer-db/id6762024331/reviews)** |
| Number of ratings | 3 | **12** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 69 MB | 16 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Kyu-Hee Jang](https://appshunter.io/developer/1587578867) | [Otsukare AB](https://appshunter.io/developer/1892516192) |

## What reviewers say

### Spectrum Analyzer+ Audio FFT

[App page](https://appshunter.io/ios/app/spectrum-analyzer-plus-audio-fft/id6760830858)

This utility transforms your device into a real-time audio frequency analyzer. It visualizes sound frequencies from 20 Hz to 20 kHz using the microphone, displaying amplitude and peak frequencies. It's designed for musicians, audio engineers, and sound enthusiasts.

**Highlights:** Real-time FFT audio spectrum visualization, Frequency range 20 Hz to 20 kHz, Peak frequency detection, Average dB level per band, Adjustable dB range, Dark theme

**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 Spectrum Analyzer+ Audio FFT free?

Spectrum Analyzer+ Audio FFT 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.

### Which has better reviews, Spectrum Analyzer+ Audio FFT or SpectralScan Audio Analyzer dB?

SpectralScan Audio Analyzer dB is rated higher. Spectrum Analyzer+ Audio FFT averages 2.3 out of 5 from 3 ratings, while SpectralScan Audio Analyzer dB averages 4.9 from 12 ratings.

### Do Spectrum Analyzer+ Audio FFT or SpectralScan Audio Analyzer dB have ads?

Spectrum Analyzer+ Audio FFT shows ads; SpectralScan Audio Analyzer dB does not.

### Which is updated more often, Spectrum Analyzer+ Audio FFT or SpectralScan Audio Analyzer dB?

Spectrum Analyzer+ Audio FFT ships an update weekly, and SpectralScan Audio Analyzer dB every 9 days. Most recently, Spectrum Analyzer+ Audio FFT was updated on October 3, 2026 and SpectralScan Audio Analyzer dB on October 19, 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.*