# Decibel vs Db

The clearest difference is in-app purchases: Db at none against Decibel's 3. Db also leads on ads (none vs shown). Decibel's advantage is iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Decibel sells 3 in-app purchases, starting at $0.99 per month. Db asks for nothing beyond the download.

## The numbers

| Metric | Decibel | Db |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (6 ratings)](https://appshunter.io/ios/app/decibel-db-sound-meter/id1620285258/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 46 MB | 0 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Coocent Ltd.](https://appshunter.io/developer/942889525) | [sie medway-smith](https://appshunter.io/developer/6802656439) |

## What reviewers say

### Decibel

[App page](https://appshunter.io/ios/app/decibel-db-sound-meter/id1620285258)

Measure ambient noise levels with this sound meter app. It offers professional-quality measurements, real-time decibel readings, and the ability to save and share your findings. Customize warnings and themes for a personalized experience.

**Highlights:** Accurate dB measurements, Real-time spectrum analyzer, Save and share measurements, Customizable decibel warnings, Noise dosimeter functionality, Measurement history review

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sound meter premium - monthly | $0.99 | per month |
| Sound meter premium - yearly | $9.99 | per year |
| Sound meter premium- permanent | $12.99 | one-time |


### Db

[App page](https://appshunter.io/ios/app/db/id6802656437)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel free?

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

### Is Db free?

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

### Do Decibel or Db have ads?

Decibel shows ads; Db does not.

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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.*