# Decibel Meter vs iSPL PRO+

The clearest difference is iOS requirement: Decibel Meter at 16.0 against iSPL PRO+'s 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Decibel Meter sells 3 in-app purchases, starting at $2.99 per 7 days and iSPL PRO+ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Decibel Meter | iSPL PRO+ |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 176 MB | 23 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PaoApps](https://appshunter.io/developer/1746019535) | [Colours Lab](https://appshunter.io/developer/528274160) |

## 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 |


### iSPL PRO+

[App page](https://appshunter.io/ios/app/ispl-pro-plus/id6762527669)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $4.99 | one-time |


## Frequently asked questions

### Is Decibel Meter free?

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

### Is iSPL PRO+ free?

iSPL PRO+ is free to download, with in-app purchases available.

### Do Decibel Meter or iSPL PRO+ have ads?

Neither Decibel Meter nor iSPL PRO+ 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.*