# Decibel Meter vs DsBlueTool

The clearest difference is price: DsBlueTool at Free against Decibel Meter's $3.99. DsBlueTool also leads on update cadence (every 5 days vs every 6 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

DsBlueTool is free to download; Decibel Meter costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Decibel Meter ships an update every 6 months, DsBlueTool every 5 days. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Decibel Meter | DsBlueTool |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 days** |
| Size | 1 MB | 3 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [庆贤 曾](https://appshunter.io/developer/1767739447) | [伟荣 郑](https://appshunter.io/developer/975112014) |

## What reviewers say

### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-expert-accuracy/id6680196104)

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

**In-app purchases:** none


### DsBlueTool

[App page](https://appshunter.io/ios/app/dsbluetool/id6755422154)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter free?

Decibel Meter costs $3.99, with no in-app purchases.

### Is DsBlueTool free?

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

### Do Decibel Meter or DsBlueTool have ads?

Neither Decibel Meter nor DsBlueTool shows ads.

### Which is updated more often, Decibel Meter or DsBlueTool?

Decibel Meter ships an update every 6 months, and DsBlueTool every 5 days. Most recently, Decibel Meter was updated on October 24, 2026 and DsBlueTool on October 6, 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.*