# Decibel Reader vs 威沃克Boss

The clearest difference is in-app purchases: 威沃克Boss at none against Decibel Reader's 6. 威沃克Boss also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.0). Decibel Reader's advantage is update cadence (every 2 weeks vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Decibel Reader sells 6 in-app purchases, starting at $3.99 per 7 days. 威沃克Boss asks for nothing beyond the download.

Decibel Reader ships an update every 2 weeks, 威沃克Boss every 3 months. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Decibel Reader | 威沃克Boss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (24 ratings)](https://appshunter.io/ios/app/decibel-reader/id6451411046/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 32 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andy Sutanto](https://appshunter.io/developer/1659282966) | [wivoce](https://appshunter.io/developer/1740929470) |

## What reviewers say

### Decibel Reader

[App page](https://appshunter.io/ios/app/decibel-reader/id6451411046)

Measure ambient noise levels with real-time readings, tracking minimum, average, and maximum decibels. Offers calibration for accuracy and a dark mode for comfortable viewing. This tool helps you understand your sound environment.

**Highlights:** Real-time decibel measurement, Calibration for accuracy, Track min, average, and max noise levels, Dark mode for low-light use, Simple and intuitive interface

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Decibel Meter Pro - 1 Week | $3.99 | per 7 days |
| Decibel Meter Pro - 1 Month | $7.99 | per month |
| Sound Level Meter - 6 Months | $19.99 | per 6 months |
| Noise Level Meter - 1 Year | $29.99 | per year |
| Decibel Meter Pro - 1Y 2 | $29.99 | per year |
| dB Meter Pro | $49.99 | one-time |


### 威沃克Boss

[App page](https://appshunter.io/ios/app/boss/id6670484813)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Reader free?

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

### Is 威沃克Boss free?

威沃克Boss is free to download, with no in-app purchases.

### Do Decibel Reader or 威沃克Boss have ads?

Decibel Reader shows ads; 威沃克Boss does not.

### Which is updated more often, Decibel Reader or 威沃克Boss?

Decibel Reader ships an update every 2 weeks, and 威沃克Boss every 3 months. Most recently, Decibel Reader was updated on September 18, 2026 and 威沃克Boss on September 20, 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.*