# SpectralScan Audio Analyzer dB vs Spectrum

The clearest difference is ads: SpectralScan Audio Analyzer dB at none against Spectrum's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. SpectralScan Audio Analyzer dB sells 1 one-off in-app purchase and Spectrum sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

SpectralScan Audio Analyzer dB ships an update every 9 days, Spectrum every 5 days. The most recent releases landed on November 15, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | SpectralScan Audio Analyzer dB | Spectrum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (21 ratings)](https://appshunter.io/ios/app/spectralscan-audio-analyzer-db/id6762024331/reviews)** | — |
| Number of ratings | **21** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 91 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Otsukare AB](https://appshunter.io/developer/1892516192) | [SEONYONG LEE](https://appshunter.io/developer/6775892940) |

## What reviewers say

### 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 | $11.99 | one-time |


### Spectrum

[App page](https://appshunter.io/ios/app/spectrum-audio-analyzer/id6787894411)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Yearly | $5.99 | per year |
| Spectrum Pro | $17.99 | one-time |


## Frequently asked questions

### Is SpectralScan Audio Analyzer dB free?

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

### Is Spectrum free?

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

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

Spectrum shows ads; SpectralScan Audio Analyzer dB does not.

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

SpectralScan Audio Analyzer dB ships an update every 9 days, and Spectrum every 5 days. Most recently, SpectralScan Audio Analyzer dB was updated on November 15, 2026 and Spectrum on November 12, 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.*