# Motorcycle Tyre Size Calc vs SpectralScan Audio Analyzer dB

The clearest difference is price: SpectralScan Audio Analyzer dB at Free against Motorcycle Tyre Size Calc's $2.99. SpectralScan Audio Analyzer dB also leads on update cadence (every 9 days vs every 38 months). Motorcycle Tyre Size Calc's advantage is in-app purchases (none vs 1) and iOS requirement (13 vs 15.0). On ads and device support there is nothing between them.

SpectralScan Audio Analyzer dB is free to download; Motorcycle Tyre Size Calc costs $2.99 up front. SpectralScan Audio Analyzer dB sells 1 one-off in-app purchase. Motorcycle Tyre Size Calc asks for nothing beyond the download.

Motorcycle Tyre Size Calc ships an update every 38 months, SpectralScan Audio Analyzer dB every 9 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Motorcycle Tyre Size Calc | SpectralScan Audio Analyzer dB |
| --- | --- | --- |
| Price | $2.99 | **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 38 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 16 MB |
| Requires iOS | **13** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [Otsukare AB](https://appshunter.io/developer/1892516192) |

## What reviewers say

### Motorcycle Tyre Size Calc

[App page](https://appshunter.io/ios/app/motorcycle-tyre-size-calc/id6444922943)

**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 | $11.99 | one-time |


## Frequently asked questions

### Is Motorcycle Tyre Size Calc free?

Motorcycle Tyre Size Calc costs $2.99, 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 Motorcycle Tyre Size Calc or SpectralScan Audio Analyzer dB have ads?

Neither Motorcycle Tyre Size Calc nor SpectralScan Audio Analyzer dB shows ads.

### Which is updated more often, Motorcycle Tyre Size Calc or SpectralScan Audio Analyzer dB?

Motorcycle Tyre Size Calc ships an update every 38 months, and SpectralScan Audio Analyzer dB every 9 days. Most recently, Motorcycle Tyre Size Calc was updated on October 27, 2026 and SpectralScan Audio Analyzer dB on October 28, 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.*