# Decibel Meter Sound Level dB vs SPL Meter

The clearest difference is ads: SPL Meter at none against Decibel Meter Sound Level dB's shown. SPL Meter also leads on update cadence (every 5 weeks vs every 3 months). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Decibel Meter Sound Level dB sells 4 in-app purchases, starting at $4.99 per 7 days and SPL Meter sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for Decibel Meter Sound Level dB against 4.5 for SPL Meter. Both are backed by a comparable volume of ratings — 24 and 11 respectively.

Decibel Meter Sound Level dB ships an update every 3 months, SPL Meter every 5 weeks. The most recent releases landed on September 27, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Decibel Meter Sound Level dB | SPL Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (24 ratings)](https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1609178369/reviews) | **[4.5 (11 ratings)](https://appshunter.io/ios/app/spl-meter-dbtracker/id6742470686/reviews)** |
| Number of ratings | **24** | 11 |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 19 MB | 9 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [汇杭 钟](https://appshunter.io/developer/1481585840) | [金红 李](https://appshunter.io/developer/1781133144) |

## What reviewers say

### Decibel Meter Sound Level dB

[App page](https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1609178369)

This tool transforms your iPhone into a professional sound level meter. It measures noise levels, tracks daily noise exposure, and can record video with embedded decibel data for evidence. Analyze sound frequencies and generate reports for workplace compliance or noise complaints.

**Highlights:** Professional noise dosimeter, OSHA & NIOSH standards compliance, Video recording with dB overlay, Spectrum analyzer (RTA), PDF report export, Calibration for accuracy, Background measurement mode

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Monthly | $5.99 | per month |
| Premium Yearly | $29.99 | per year |
| Lifetime Premium | $49.99 | one-time |


### SPL Meter

[App page](https://appshunter.io/ios/app/spl-meter-dbtracker/id6742470686)

This tool measures ambient noise levels in real-time, providing decibel readings to help you understand noise intensity and protect your hearing. It features an intuitive gauge, explanations of noise levels, and recording capabilities to track variations across locations and times.

**Highlights:** Real-time decibel measurement, Intuitive gauge display, Noise level explanations, Recording functionality, Track noise variations, Hearing protection guidance

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $1.99 | per 7 days |
| Unlimited access | $9.99 | per year |


## Frequently asked questions

### Is Decibel Meter Sound Level dB free?

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

### Is SPL Meter free?

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

### Which has better reviews, Decibel Meter Sound Level dB or SPL Meter?

SPL Meter is rated higher. Decibel Meter Sound Level dB averages 4.4 out of 5 from 24 ratings, while SPL Meter averages 4.5 from 11 ratings.

### Do Decibel Meter Sound Level dB or SPL Meter have ads?

Decibel Meter Sound Level dB shows ads; SPL Meter does not.

### Which is updated more often, Decibel Meter Sound Level dB or SPL Meter?

Decibel Meter Sound Level dB ships an update every 3 months, and SPL Meter every 5 weeks. Most recently, Decibel Meter Sound Level dB was updated on September 27, 2026 and SPL Meter on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*