# NoiSee vs Decibel Shield

The clearest difference is price: Decibel Shield at Free against NoiSee's $0.99. Decibel Shield also leads on update cadence (every 3 days vs every 9 months) and rating (4.7 vs 4.5). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Decibel Shield is free to download; NoiSee costs $0.99 up front. NoiSee sells 4 one-off in-app purchases 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 4.5. Both are backed by a comparable volume of ratings — 242 and 608 respectively. Written reviews point the same way: 63% of NoiSee's written reviews are positive against 75% of Decibel Shield's.

NoiSee ships an update every 9 months, Decibel Shield every 3 days. Both last shipped on September 24, 2026.

## The numbers

| Metric | NoiSee | Decibel Shield |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.5 (242 ratings)](https://appshunter.io/ios/app/noisee/id549239949/reviews) | **[4.7 (608 ratings)](https://appshunter.io/ios/app/decibel-shield-db-meter/id6461600902/reviews)** |
| Number of ratings | 242 | **608** |
| Positive reviews | 62.5% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 7 MB | 43 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EA LAB](https://appshunter.io/developer/1005558529) | [APPSTACK LLC](https://appshunter.io/developer/1454414263) |

## What reviewers say

### NoiSee

[App page](https://appshunter.io/ios/app/noisee/id549239949)

This app functions as a professional-grade sound level meter for iOS devices. It offers advanced features for occupational health measurements, including noise dose and projected dose calculations. The app utilizes the device's internal microphone and provides accurate readings tested against professional standards.

**Highlights:** Professional-grade sound level meter, Occupational health compliant parameters, Noise DOSE and Elapsed time, Frequency and time weighting options, Spectrum analysis, Calibration features

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Logging | $1.99 | one-time |
| Audio recording | $1.99 | one-time |
| Reporting | $1.99 | one-time |
| Premium octave analysis | $2.99 | one-time |


### 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 NoiSee free?

NoiSee costs $0.99, and also offers in-app purchases.

### Is Decibel Shield free?

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

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

Decibel Shield is rated higher. NoiSee averages 4.5 out of 5 from 242 ratings, while Decibel Shield averages 4.7 from 608 ratings.

### Do NoiSee or Decibel Shield have ads?

Neither NoiSee nor Decibel Shield shows ads.

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

NoiSee ships an update every 9 months, and Decibel Shield every 3 days. Most recently, NoiSee was updated on September 24, 2026 and Decibel Shield on September 24, 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.*