# Spectrum Analyzer+ FFT vs SpectralScan Audio Analyzer

The clearest difference is rating: SpectralScan Audio Analyzer at 5.0 against Spectrum Analyzer+ FFT's 2.3. SpectralScan Audio Analyzer also leads on ads (none vs shown) and device support (3 vs 1). Spectrum Analyzer+ FFT's advantage is in-app purchases (none vs 1). On price, ratings volume and update cadence there is nothing between them.

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

SpectralScan Audio Analyzer holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 6 respectively.

Spectrum Analyzer+ FFT ships an update weekly, SpectralScan Audio Analyzer every 8 days. The most recent releases landed on September 3, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Spectrum Analyzer+ FFT | SpectralScan Audio Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/spectrum-analyzer-plus-fft/id6760830858/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/spectralscan-audio-analyzer/id6762024331/reviews)** |
| Number of ratings | 3 | **6** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 8 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+ FFT

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

[App page](https://appshunter.io/ios/app/spectralscan-audio-analyzer/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+ FFT free?

Spectrum Analyzer+ FFT is free to download, with no in-app purchases.

### Is SpectralScan Audio Analyzer free?

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

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

SpectralScan Audio Analyzer is rated higher. Spectrum Analyzer+ FFT averages 2.3 out of 5 from 3 ratings, while SpectralScan Audio Analyzer averages 5.0 from 6 ratings.

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

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

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

Spectrum Analyzer+ FFT ships an update weekly, and SpectralScan Audio Analyzer every 8 days. Most recently, Spectrum Analyzer+ FFT was updated on September 3, 2026 and SpectralScan Audio Analyzer on September 9, 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.*