# Decibel：db Sound Meter vs CINOY 2

The clearest difference is in-app purchases: CINOY 2 at none against Decibel：db Sound Meter's 3. Decibel：db Sound Meter's advantage is iOS requirement (13.0 vs 15). On price, ads and device support there is nothing between them.

Both are free to download. Decibel：db Sound Meter sells 3 in-app purchases, starting at $3.99 per 7 days. CINOY 2 asks for nothing beyond the download.

## The numbers

| Metric | Decibel：db Sound Meter | CINOY 2 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 8.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | — |
| Monetization | Freemium | — |
| Size | 27 MB | 4 MB |
| Requires iOS | **13.0** | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Qinghe Net LLC](https://appshunter.io/developer/1780821316) | [小梅 苏](https://appshunter.io/developer/1141829061) |

## What reviewers say

### Decibel：db Sound Meter

[App page](https://appshunter.io/ios/app/decibeldb-sound-meter/id6740468843)

Measure noise levels accurately with this practical tool. It offers real-time decibel monitoring, photo and video recording with decibel watermarks, and downloadable reports for easy noise management.

**Highlights:** Real-time decibel monitoring, Photo recording with decibel watermark, Real-time video recording, Downloadable monitoring reports, Detailed decibel detection records

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Members | $3.99 | per 7 days |
| Monthly Membership | $5.99 | per month |
| Annual Membership | $14.99 | per year |


### CINOY 2

[App page](https://appshunter.io/ios/app/cinoy-2/id6800561939)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel：db Sound Meter free?

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

### Is CINOY 2 free?

CINOY 2 is free to download, with no in-app purchases.

### Do Decibel：db Sound Meter or CINOY 2 have ads?

Neither Decibel：db Sound Meter nor CINOY 2 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.*