# Decibel Meter vs Stardate Clock

The clearest difference is in-app purchases: Stardate Clock at none against Decibel Meter's 4. Stardate Clock also leads on iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Decibel Meter sells 4 in-app purchases, starting at $2.99 per 7 days. Stardate Clock asks for nothing beyond the download.

## The numbers

| Metric | Decibel Meter | Stardate Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (9 ratings)](https://appshunter.io/ios/app/decibel-meter-noise-meter-db/id6767143529/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Monetization | Freemium | — |
| Size | 68 MB | 4 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [SEEYAS LIMITED](https://appshunter.io/developer/1895208045) | [Christopher Dawes](https://appshunter.io/developer/1762239392) |

## What reviewers say

### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-noise-meter-db/id6767143529)

Transform your device into a professional sound level meter to measure ambient noise in real-time. Analyze sound frequencies, monitor noise exposure, and export detailed reports to understand your acoustic environment.

**Highlights:** Real-time decibel measurement, A, C, and Z frequency weighting, FAST, SLOW, and IMPULSE response modes, Spectrum Analyzer with FFT and spectrogram, Noise Dosimeter for daily exposure estimates, Long-term tracking and history logs, Exportable PDF reports

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Discount | $2.99 | per 7 days |
| Weekly Premium | $9.99 | per 7 days |
| Monthly Premium | $9.99 | per month |
| Annual Premium | $49.99 | per year |


### Stardate Clock

[App page](https://appshunter.io/ios/app/stardate-clock/id6775262225)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter free?

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

### Is Stardate Clock free?

Stardate Clock is free to download, with no in-app purchases.

### Do Decibel Meter or Stardate Clock have ads?

Neither Decibel Meter nor Stardate Clock 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.*