# Decibel Meter vs Decibel Shield

The clearest difference is rating: Decibel Shield at 4.7 against Decibel Meter's 3.5. Decibel Shield also leads on update cadence (daily vs every 11 months) and review sentiment (77% vs 50%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Decibel Meter sells 4 in-app purchases, starting at $3.99 per 7 days and Decibel Shield sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Decibel Shield holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: Decibel Shield has 644 ratings behind it against 55, so its average is the more settled of the two. Written reviews point the same way: 50% of Decibel Meter's written reviews are positive against 77% of Decibel Shield's.

Decibel Meter ships an update every 11 months, Decibel Shield daily. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Decibel Meter | Decibel Shield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (55 ratings)](https://appshunter.io/ios/app/decibel-meter-sound-analyzer/id1579747105/reviews) | **[4.7 (644 ratings)](https://appshunter.io/ios/app/decibel-shield-db-meter/id6461600902/reviews)** |
| Number of ratings | 55 | **644** |
| Positive reviews | 50.0% of reviews | **76.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Daily** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 18 MB | 43 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rychard Matskevich](https://appshunter.io/developer/1395390712) | [APPSTACK LLC](https://appshunter.io/developer/1454414263) |

## What reviewers say

### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-sound-analyzer/id1579747105)

This tool transforms your iPhone into a professional sound level meter, measuring decibels and analyzing sound frequencies. It helps identify harmful noise levels to protect your hearing and health, offering detailed insights and measurement history.

**Highlights:** Professional sound level meter, Sound frequency analysis, Noise dosimeter with standards, Accurate sound pressure measurements, Save and export measurements, Advanced measurement charts, MIN/MAX/AVG data

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Decibel Meter Premium Weekly | $3.99 | per 7 days |
| Noise Spectrum Detector VIP | $8.99 | per month |
| Noise Frequency Checker VIP | $19.99 | per 3 months |
| Sound Level Analyzer dB VIP | $29.99 | per year |


### Decibel Shield

[App page](https://appshunter.io/ios/app/decibel-shield-db-meter/id6461600902)

Measure and track sound levels in real-time with this user-friendly decibel meter. Log historical data, integrate with Apple Health, and gain insights into your sound environment. Includes a white noise generator for focused listening.

**Highlights:** Real-time decibel monitoring, Historical data tracking, Apple Health integration, White noise generator, iCloud sync, Location tagging, Background processing

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $1.99 | per 7 days |
| Premium Monthly | $4.99 | per month |
| Annual Membership | $44.99 | per year |
| Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is Decibel Meter free?

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

### Is Decibel Shield free?

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

### Which has better reviews, Decibel Meter or Decibel Shield?

Decibel Shield is rated higher. Decibel Meter averages 3.5 out of 5 from 55 ratings, while Decibel Shield averages 4.7 from 644 ratings.

### Do Decibel Meter or Decibel Shield have ads?

Neither Decibel Meter nor Decibel Shield shows ads.

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

Decibel Meter ships an update every 11 months, and Decibel Shield daily. Most recently, Decibel Meter was updated on November 7, 2026 and Decibel Shield on November 3, 2026.

---

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