Comparison

Plan Your Sail vs Nautical Dog Math Helper

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Plan Your Sail

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
Read full description

Sailing in areas with significant tides and currents requires good planning. It's no fun to sail against strong currents, and even less fun to run aground coming into a cove on low tide. Plan Your Sail lets you see predicted Tide and Current conditions along pre-defined routes at different Dates and Times. This helps you quickly pick the best date and time to take a particular sailing trip, or alternately, to pick the best trip for a specific day. Plan Your Sail uses NOAA data for tides and currents and, as such, works only in the United States. Plan Your Sail is not to be used for Navigation.

About

Nautical Dog Math Helper

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
Read full description

Nautical Dog Math Helper is the ultimate tool for maritime professionals, designed to simplify complex calculations you need every day on the job. Whether you’re navigating through tricky waters or performing docking maneuvers, this app makes essential maritime math easy, fast, and accurate. Key Features: • Rate of Turn (ROT) Calculation: Instantly calculate the rate of turn to ensure safe navigation and maneuvering, improving efficiency in any operation. • Turn Transfer: Quickly compute turn transfer data for safer maneuvering of your vessel, making docking and turns more predictable. • RPM and Speed Calculations: Accurate RPM and speed calculations tailored for marine environments, helping you maintain optimal speeds while staying safe. • Anchor Swing: Calculate anchor swing radius to avoid collisions and ensure your vessel stays safely anchored in varying conditions. • DST (Distance, Speed, Time): Compute essential distance, speed, and time calculations for planning and navigation during voyages. • Simple, User-Friendly Interface: Navigate the app easily with an intuitive layout designed specifically for maritime professionals. No complex math required. • Night Mode: An optimized dark mode for use during low-light conditions or nighttime operations, reducing eye strain and keeping you focused on your work. • Tailored for Mariners: Created with real-world maritime challenges in mind. Whether you’re aboard a large vessel or a smaller boat, this app is designed to support your unique needs. • Offline Functionality: Calculate and access essential data even when you don’t have internet access, perfect for use on the water. Why Choose Nautical Dog Math Helper? For those working in the maritime industry, precise calculations are critical for safe and efficient operations. With Nautical Dog Math Helper, you can quickly solve essential problems without needing a calculator or reference materials. Designed for both novice and expert mariners, it’s the only app you’ll need for common vessel calculations. From calculating your rate of turn for precise navigation to ensuring your vessel’s safety with anchor swing radius—this app covers it all, helping you make decisions faster and more accurately. Get started with Nautical Dog Math Helper today and experience how easy maritime calculations can be!

Screenshots

Plan Your Sail4 screens
Nautical Dog Math Helper4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
Plan Your Sail versus Nautical Dog Math Helper: the parameters behind the verdict, then further details
ParameterPlan Your SailNautical Dog Math Helper
PriceFreeFree
Rating5.0 (2 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews—
Number of ratings23 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.6
Further details — not scored
Size16 MB6 MB
Age rating4+4+
DeveloperRichard CraddockJill Russell

Customer experience

Plan Your Sail

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Nautical Dog Math Helper

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Plan Your Sail

No in-app purchases

None

Nautical Dog Math Helper

No in-app purchases

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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