# Ruzza Móvel vs Decibel Meter

The clearest difference is in-app purchases: Ruzza Móvel at none against Decibel Meter's 4. Decibel Meter's advantage is update cadence (every 9 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Ruzza Móvel ships an update every 3 months, Decibel Meter every 9 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Ruzza Móvel | Decibel Meter |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | — | Freemium |
| Size | 23 MB | 68 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [INFINITI TECNOLOGIA EM COMUNICACAO LTDA](https://appshunter.io/developer/1540099228) | [SEEYAS LIMITED](https://appshunter.io/developer/1895208045) |

## What reviewers say

### Ruzza Móvel

[App page](https://appshunter.io/ios/app/ruzza-movel/id6741165124)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Ruzza Móvel free?

Ruzza Móvel is free to download, with no in-app purchases.

### Is Decibel Meter free?

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

### Do Ruzza Móvel or Decibel Meter have ads?

Neither Ruzza Móvel nor Decibel Meter shows ads.

### Which is updated more often, Ruzza Móvel or Decibel Meter?

Ruzza Móvel ships an update every 3 months, and Decibel Meter every 9 days. Most recently, Ruzza Móvel was updated on October 30, 2026 and Decibel Meter on October 24, 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.*