# Plan Your Sail vs Nautical Dog Math Helper

The clearest difference is update cadence: Nautical Dog Math Helper at weekly against Plan Your Sail's every 2 months. Plan Your Sail's advantage is iOS requirement (13.0 vs 16.6). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Plan Your Sail against 5.0 for Nautical Dog Math Helper. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

Plan Your Sail ships an update every 2 months, Nautical Dog Math Helper weekly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Plan Your Sail | Nautical Dog Math Helper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/plan-your-sail/id1579756953/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/nautical-dog-math-helper/id6744040776/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | Free |
| Size | 16 MB | 6 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Richard Craddock](https://appshunter.io/developer/1579756955) | [Jill Russell](https://appshunter.io/developer/1792014832) |

## What reviewers say

### Plan Your Sail

[App page](https://appshunter.io/ios/app/plan-your-sail/id1579756953)

Visualize predicted tide and current conditions along sailing routes for specific dates and times. This tool helps optimize sailing trips by avoiding strong currents and low tide hazards. It utilizes NOAA data for the United States.

**Highlights:** Predict tide and current conditions, Visualize conditions along routes, Select optimal dates and times, Utilizes NOAA data, Works in the United States

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Plan Your Sail free?

Plan Your Sail is free to download, with no in-app purchases.

### Is Nautical Dog Math Helper free?

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

### Which has better reviews, Plan Your Sail or Nautical Dog Math Helper?

Plan Your Sail and Nautical Dog Math Helper are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do Plan Your Sail or Nautical Dog Math Helper have ads?

Neither Plan Your Sail nor Nautical Dog Math Helper shows ads.

### Which is updated more often, Plan Your Sail or Nautical Dog Math Helper?

Plan Your Sail ships an update every 2 months, and Nautical Dog Math Helper weekly. Most recently, Plan Your Sail was updated on November 3, 2026 and Nautical Dog Math Helper on November 4, 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.*