# Decibel Meter Plus Pro vs Boat Buddy

The clearest difference is price: Decibel Meter Plus Pro at Free against Boat Buddy's $0.99. Decibel Meter Plus Pro also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Boat Buddy's advantage is in-app purchases (none vs 1). On update cadence and ads there is nothing between them.

Decibel Meter Plus Pro is free to download; Boat Buddy costs $0.99 up front. Decibel Meter Plus Pro sells 1 one-off in-app purchase. Boat Buddy asks for nothing beyond the download.

Decibel Meter Plus Pro ships an update every 2 months, Boat Buddy every 3 months. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Decibel Meter Plus Pro | Boat Buddy |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.8 (81 ratings)](https://appshunter.io/ios/app/decibel-meter-plus-pro/id645214476/reviews)** | — |
| Number of ratings | **81** | — |
| Positive reviews | 52.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | — |
| Size | 12 MB | 7 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [华芳 张](https://appshunter.io/developer/586041482) | [Ona Pacholo Asis](https://appshunter.io/developer/1896650203) |

## What reviewers say

### Decibel Meter Plus Pro

[App page](https://appshunter.io/ios/app/decibel-meter-plus-pro/id645214476)

Measure the sound levels around you with this utility app. It displays average, peak, and max values, offers decibel exposure time guidelines, and provides information on noise-induced hearing loss. The app also allows data recording and export for analysis.

**Highlights:** Measure sound levels, Display average, peak, and max values, Decibel exposure time guidelines, Information on noise-induced hearing loss, Record and export data, Calibrate measurements, Universal app support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Reports | $0.99 | one-time |


### Boat Buddy

[App page](https://appshunter.io/ios/app/boat-buddy-nautical-guide/id6789200263)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter Plus Pro free?

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

### Is Boat Buddy free?

Boat Buddy costs $0.99, with no in-app purchases.

### Do Decibel Meter Plus Pro or Boat Buddy have ads?

Neither Decibel Meter Plus Pro nor Boat Buddy shows ads.

### Which is updated more often, Decibel Meter Plus Pro or Boat Buddy?

Decibel Meter Plus Pro ships an update every 2 months, and Boat Buddy every 3 months. Most recently, Decibel Meter Plus Pro was updated on November 6, 2026 and Boat Buddy on November 10, 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.*