# Decibel Meter vs SpecifyHub

The clearest difference is in-app purchases: SpecifyHub at none against Decibel Meter's 3. SpecifyHub also leads on update cadence (every 2 days vs monthly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Decibel Meter sells 3 in-app purchases, starting at $2.99 per 7 days. SpecifyHub asks for nothing beyond the download.

Decibel Meter ships an update monthly, SpecifyHub every 2 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Decibel Meter | SpecifyHub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (55 ratings)](https://appshunter.io/ios/app/decibel-meter-db-noise-level/id6744018521/reviews)** | — |
| Number of ratings | **55** | — |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 176 MB | 14 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [PaoApps](https://appshunter.io/developer/1746019535) | [Shaun Byrne](https://appshunter.io/developer/1512413975) |

## What reviewers say

### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-db-noise-level/id6744018521)

This tool transforms your iPhone into a real-time sound level meter. It measures and displays environmental noise in decibels, helping you monitor sound at home, work, or outdoors. Protect your hearing by detecting loud noises and staying aware of your sound environment.

**Highlights:** Real-time decibel measurement, Dynamic graph display, Min/Max/Average sound levels, Measuring timer, Pause and Reset buttons, Noise pollution checks

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access with Trial | $2.99 | per 7 days |
| Weekly Access | $2.99 | per 7 days |
| Yearly Access | $17.99 | per year |


### SpecifyHub

[App page](https://appshunter.io/ios/app/specifyhub/id6754690379)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter free?

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

### Is SpecifyHub free?

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

### Do Decibel Meter or SpecifyHub have ads?

Neither Decibel Meter nor SpecifyHub shows ads.

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

Decibel Meter ships an update monthly, and SpecifyHub every 2 days. Most recently, Decibel Meter was updated on November 4, 2026 and SpecifyHub on November 5, 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.*