# dB Noise Meter vs Decibel Shield

The clearest difference is review sentiment: Decibel Shield at 77% against dB Noise Meter's 15%. Decibel Shield also leads on rating (4.7 vs 3.8) and ads (none vs shown). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. dB Noise Meter sells 5 in-app purchases, starting at $6.99 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 3.8. That said, the two scores are not equally well evidenced: Decibel Shield has 632 ratings behind it against 122, so its average is the more settled of the two. Written reviews point the same way: 15% of dB Noise Meter's written reviews are positive against 77% of Decibel Shield's.

dB Noise Meter ships an update every 2 months, Decibel Shield daily. The most recent releases landed on October 14, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | dB Noise Meter | Decibel Shield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (122 ratings)](https://appshunter.io/ios/app/db-noise-meter/id1590850487/reviews) | **[4.7 (632 ratings)](https://appshunter.io/ios/app/decibel-shield-db-meter/id6461600902/reviews)** |
| Number of ratings | 122 | **632** |
| Positive reviews | 15.4% of reviews | **76.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 49 MB | 43 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | +4 | 4+ |
| Developer | [Petr Polasek](https://appshunter.io/developer/1613323784) | [APPSTACK LLC](https://appshunter.io/developer/1454414263) |

## What reviewers say

### dB Noise Meter

[App page](https://appshunter.io/ios/app/db-noise-meter/id1590850487)

Measure ambient noise levels in decibels (dB) using your phone's microphone. Track real-time noise, identify loud appliances, and monitor your exposure to potentially harmful sound levels.

**Highlights:** Real-time decibel measurement, Noise level tracking, Appliance noise testing, Save noise measurements, Display min/max/avg dB

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 week | $6.99 | per 7 days |
| Premium 1 Month | $9.99 | per month |
| Premium 3 Months | $17.99 | per 3 months |
| Premium 6 Months | $19.99 | per 6 months |
| Premium 1 Year | $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 dB Noise Meter free?

dB Noise 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, dB Noise Meter or Decibel Shield?

Decibel Shield is rated higher. dB Noise Meter averages 3.8 out of 5 from 122 ratings, while Decibel Shield averages 4.7 from 632 ratings.

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

dB Noise Meter shows ads; Decibel Shield does not.

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

dB Noise Meter ships an update every 2 months, and Decibel Shield daily. Most recently, dB Noise Meter was updated on October 14, 2026 and Decibel Shield on October 21, 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.*