# Nautical Dog Math Helper vs Mariners Log Mobile

The clearest difference is update cadence: Nautical Dog Math Helper at weekly against Mariners Log Mobile's every 2 weeks. Mariners Log Mobile's advantage is iOS requirement (13.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Nautical Dog Math Helper ships an update weekly, Mariners Log Mobile every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Nautical Dog Math Helper | Mariners Log Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nautical-dog-math-helper/id6744040776/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free | — |
| Size | 6 MB | 29 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jill Russell](https://appshunter.io/developer/1792014832) | [Kengineer Limited](https://appshunter.io/developer/1619488060) |

## What reviewers say

### Nautical Dog Math Helper

[App page](https://appshunter.io/ios/app/nautical-dog-math-helper/id6744040776)

This app simplifies essential maritime calculations for professionals. It offers tools for navigation, maneuvering, and vessel operations, ensuring accuracy and efficiency at sea. Designed for ease of use, it provides critical data even without internet access.

**Highlights:** Rate of Turn (ROT) Calculation, Turn Transfer Computation, RPM and Speed Calculations, Anchor Swing Radius, Distance, Speed, Time (DST), Offline Functionality, Night Mode

**Features:** macOS Compatibility

**In-app purchases:** none


### Mariners Log Mobile

[App page](https://appshunter.io/ios/app/mariners-log-mobile/id6759027844)

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

**In-app purchases:** none


## Frequently asked questions

### Is Nautical Dog Math Helper free?

Nautical Dog Math Helper is free to download, with no in-app purchases.

### Is Mariners Log Mobile free?

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

### Do Nautical Dog Math Helper or Mariners Log Mobile have ads?

Neither Nautical Dog Math Helper nor Mariners Log Mobile shows ads.

### Which is updated more often, Nautical Dog Math Helper or Mariners Log Mobile?

Nautical Dog Math Helper ships an update weekly, and Mariners Log Mobile every 2 weeks. Most recently, Nautical Dog Math Helper was updated on October 30, 2026 and Mariners Log Mobile on October 31, 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.*