# Decibel：Sound Meter vs Socios CYA

The clearest difference is in-app purchases: Socios CYA at none against Decibel：Sound Meter's 3. Socios CYA also leads on ads (none vs shown). Decibel：Sound Meter's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Decibel：Sound Meter sells 3 in-app purchases, starting at $3.99 per 7 days. Socios CYA asks for nothing beyond the download.

Decibel：Sound Meter ships an update every 11 days, Socios CYA every 2 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Decibel：Sound Meter | Socios CYA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/decibelsound-meter/id6473146362/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 11 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 27 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [ZHHUALIUON INC](https://appshunter.io/developer/1686696259) | [SERVICIOS Y TECNOLOGIA LIMITADA](https://appshunter.io/developer/1047321418) |

## What reviewers say

### Decibel：Sound Meter

[App page](https://appshunter.io/ios/app/decibelsound-meter/id6473146362)

This application offers real-time decibel measurements with high precision. It provides detailed reports, location data, and the ability to share or export audio measurements. Users can also utilize a real-time decibel camera feature.

**Highlights:** Real-time decibel measurement, High precision, Location data, Decibel camera, Measurement reports, Data sharing, Audio data export

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly membership | $3.99 | per 7 days |
| Monthly membership | $4.99 | per month |
| Annual membership | $14.99 | per year |


### Socios CYA

[App page](https://appshunter.io/ios/app/socios-cya/id6743005091)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel：Sound Meter free?

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

### Is Socios CYA free?

Socios CYA is free to download, with no in-app purchases.

### Do Decibel：Sound Meter or Socios CYA have ads?

Decibel：Sound Meter shows ads; Socios CYA does not.

### Which is updated more often, Decibel：Sound Meter or Socios CYA?

Decibel：Sound Meter ships an update every 11 days, and Socios CYA every 2 weeks. Most recently, Decibel：Sound Meter was updated on October 30, 2026 and Socios CYA 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.*