# SpectralScan Audio Analyzer dB vs Flat Equalizer Bass

The clearest difference is update cadence: Flat Equalizer Bass at daily against SpectralScan Audio Analyzer dB's every 9 days. SpectralScan Audio Analyzer dB's advantage is iOS requirement (15.0 vs 17.0). On price, ads, 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 Flat Equalizer Bass sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

SpectralScan Audio Analyzer dB ships an update every 9 days, Flat Equalizer Bass daily. The most recent releases landed on October 19, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SpectralScan Audio Analyzer dB | Flat Equalizer Bass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (12 ratings)](https://appshunter.io/ios/app/spectralscan-audio-analyzer-db/id6762024331/reviews)** | — |
| Number of ratings | **12** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 20 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Otsukare AB](https://appshunter.io/developer/1892516192) | [Ngoc Son Tran](https://appshunter.io/developer/6812948668) |

## 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 |


### Flat Equalizer Bass

[App page](https://appshunter.io/ios/app/flat-equalizer-bassbooster-eq/id6817783584)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $12.99 | per year |


## Frequently asked questions

### Is SpectralScan Audio Analyzer dB free?

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

### Is Flat Equalizer Bass free?

Flat Equalizer Bass is free to download, with in-app purchases available.

### Do SpectralScan Audio Analyzer dB or Flat Equalizer Bass have ads?

Neither SpectralScan Audio Analyzer dB nor Flat Equalizer Bass shows ads.

### Which is updated more often, SpectralScan Audio Analyzer dB or Flat Equalizer Bass?

SpectralScan Audio Analyzer dB ships an update every 9 days, and Flat Equalizer Bass daily. Most recently, SpectralScan Audio Analyzer dB was updated on October 19, 2026 and Flat Equalizer Bass on October 4, 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.*