# 象牙塔职教版 vs SpectralScan Audio Analyzer dB

The clearest difference is in-app purchases: 象牙塔职教版 at none against SpectralScan Audio Analyzer dB's 1. 象牙塔职教版 also leads on iOS requirement (9.0 vs 15.0). 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. 象牙塔职教版 asks for nothing beyond the download.

## The numbers

| Metric | 象牙塔职教版 | SpectralScan Audio Analyzer dB |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 44 MB | 16 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Beijing Xiangyata GridSafety InfoTech Co., Ltd.](https://appshunter.io/developer/1375878925) | [Otsukare AB](https://appshunter.io/developer/1892516192) |

## What reviewers say

### 象牙塔职教版

[App page](https://appshunter.io/ios/app/id1576140837)

**Features:** macOS Compatibility

**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 象牙塔职教版 free?

象牙塔职教版 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.

### Do 象牙塔职教版 or SpectralScan Audio Analyzer dB have ads?

Neither 象牙塔职教版 nor SpectralScan Audio Analyzer dB shows ads.

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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.*