# Decibel vs Db

The clearest difference is in-app purchases: Db at none against Decibel's 4. Db also leads on ads (none vs shown). Decibel's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price there is nothing between them.

Both are free to download. Decibel sells 4 in-app purchases, starting at $2.49 per month. Db asks for nothing beyond the download.

## The numbers

| Metric | Decibel | Db |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (36 ratings)](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id6443760208/reviews)** | — |
| Number of ratings | **36** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 0 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kemal Bakacak](https://appshunter.io/developer/1475963902) | [sie medway-smith](https://appshunter.io/developer/6802656439) |

## What reviewers say

### Decibel

[App page](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id6443760208)

Transform your device into a professional sound level meter to detect harmful noises and protect your hearing. It also allows you to test and track your stereo and hearing performance with detailed history management. The app offers accurate measurements and a quick hearing test.

**Highlights:** Professional sound level meter, Hearing performance testing, Stereo and bass sound testing, High frequency sound generation, Accurate measurements, History data management, Dark mode support

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly - Noise Dosimeter | $2.49 | per month |
| Yearly - SPL & Decibel Meter | $9.99 | per year |
| Yearly Trial - Water Eject | $9.99 | per year |
| Lifetime - Hz Tone Generator | $15.99 | 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.*