# Mariners Log vs Decibel Pro

The clearest difference is device support: Mariners Log at 3 against Decibel Pro's 1. Mariners Log also leads on iOS requirement (11.0 vs 16.1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Mariners Log | Decibel Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (75 ratings)](https://appshunter.io/ios/app/decibel-pro-sound-level-meter/id6471412443/reviews)** |
| Number of ratings | — | **75** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | — | Free |
| Size | 57 MB | 22 MB |
| Requires iOS | **11.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kengineer Limited](https://appshunter.io/developer/1619488060) | [Emre Can Altaca](https://appshunter.io/developer/1589836507) |

## What reviewers say

### Mariners Log

[App page](https://appshunter.io/ios/app/mariners-log/id1619488058)

**Features:** macOS Compatibility

**In-app purchases:** none


### Decibel Pro

[App page](https://appshunter.io/ios/app/decibel-pro-sound-level-meter/id6471412443)

This application transforms your device into a precise sound level meter. It measures decibels, tracks noise exposure over time, and visualizes data with charts. It adheres to safety standards and allows for calibration and sharing of measurements.

**Highlights:** Real-time sound level measurement (dB), Minimum and maximum dB tracking, Noise exposure (TWA, Dose) calculation, Data visualization with charts, OSHA and NIOSH standard adherence, Customizable calibration options, Measurement recording and history, Live activity display on home/lock screen

**In-app purchases:** none


## Frequently asked questions

### Is Mariners Log free?

Mariners Log is free to download, with no in-app purchases.

### Is Decibel Pro free?

Decibel Pro is free to download, with no in-app purchases.

### Do Mariners Log or Decibel Pro have ads?

Neither Mariners Log nor Decibel Pro shows ads.

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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.*