# SpectralScan Audio Analyzer dB vs L22 Spectro

The clearest difference is in-app purchases: L22 Spectro at none against SpectralScan Audio Analyzer dB's 1. L22 Spectro also leads on iOS requirement (13.0 vs 15.0). SpectralScan Audio Analyzer dB's advantage is update cadence (every 9 days vs monthly). On price, 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. L22 Spectro asks for nothing beyond the download.

SpectralScan Audio Analyzer dB ships an update every 9 days, L22 Spectro monthly. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | SpectralScan Audio Analyzer dB | L22 Spectro |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 19 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Otsukare AB](https://appshunter.io/developer/1892516192) | [Jacek Krawczykowski](https://appshunter.io/developer/6781178387) |

## 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 | $9.99 | one-time |


### L22 Spectro

[App page](https://appshunter.io/ios/app/l22-spectro/id6781178385)

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

**In-app purchases:** none


## Frequently asked questions

### Is SpectralScan Audio Analyzer dB free?

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

### Is L22 Spectro free?

L22 Spectro is free to download, with no in-app purchases.

### Do SpectralScan Audio Analyzer dB or L22 Spectro have ads?

Neither SpectralScan Audio Analyzer dB nor L22 Spectro shows ads.

### Which is updated more often, SpectralScan Audio Analyzer dB or L22 Spectro?

SpectralScan Audio Analyzer dB ships an update every 9 days, and L22 Spectro monthly. Most recently, SpectralScan Audio Analyzer dB was updated on October 25, 2026 and L22 Spectro on October 14, 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.*