Comparison

Fender Online Tools 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

Fender Online Tools

This app helps users select and specify fender systems for various applications. It offers tools for calculating berthing energy, generating specifications, and selecting appropriate fenders based on project requirements and industry standards.

Highlights
  • Fender selection tool
  • Berthing energy calculation
  • Fender Specification Generator
  • Bollard Specification Generator
  • Ship-to-Ship Fender System Selector
  • PIANC and British Standards compliance
Features
Read full description

Trelleborg’s fender online tools provide users with a number of fender system options, which are suitable for varying applications and project requirements. The user can select the most suitable fender by applying filters to arrive at the most appropriate solution. A subsequent summary document is then produced. Further optimization of the fender system with respect to cost and performance can be done in consultation with Trelleborg’s experienced engineers globally. “The easy-to-use fender specification generator tool helps consultants to create a comprehensive, ready-to-use specification for the selected fender system, including testing and inspection plans for each and every component. Customized specifications for pneumatic and foam fenders can also be produced by adding relevant parameters under the fender specification generator tool.” The tools' capabilities include: -Berthing energy calculation -Fender selection tool -A Fender Specification Generator -A Bollard Specification Generator -A Fender System Selector for Ship-to-Ship Applications Trelleborg’s fender online tools have been developed in accordance with PIANC guidelines and British Standards, as well as American (ASTM) standard, to ensure best-in-class, compliant solutions. For more information about the online tools and to discover the enhanced features visit: https://bit.ly/2KRrndC

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

Fender Online Tools4 screens
Nautical Dog Math Helper4 screens

Verdict

The call

The clearest difference is update cadence: Nautical Dog Math Helper at weekly against Fender Online Tools's every 6 months. Nautical Dog Math Helper also leads on ratings volume (3 vs 1). Fender Online Tools's advantage is iOS requirement (11.0 vs 16.6). On price, rating, ads and in-app purchases 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 Fender Online Tools against 5.0 for Nautical Dog Math Helper. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

Fender Online Tools ships an update every 6 months, Nautical Dog Math Helper weekly. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 6 level
Fender Online Tools versus Nautical Dog Math Helper: the parameters behind the verdict, then further details
ParameterFender Online ToolsNautical Dog Math Helper
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Number of ratings13 — better
Update frequencyEvery 6 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better16.6
Further details — not scored
Size71 MB6 MB
Age rating17+4+
DeveloperTrelleborg ABJill Russell

Customer experience

Fender Online Tools

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Nautical Dog Math Helper

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

In-app purchases

None

Fender Online Tools

No in-app purchases

None

Nautical Dog Math Helper

No in-app purchases

Questions

Is Fender Online Tools free?
Fender Online Tools 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, Fender Online Tools or Nautical Dog Math Helper?
Fender Online Tools and Nautical Dog Math Helper are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Fender Online Tools or Nautical Dog Math Helper have ads?
Neither Fender Online Tools nor Nautical Dog Math Helper shows ads.
Which is updated more often, Fender Online Tools or Nautical Dog Math Helper?
Fender Online Tools ships an update every 6 months, and Nautical Dog Math Helper weekly. Most recently, Fender Online Tools was updated on October 15, 2026 and Nautical Dog Math Helper on October 24, 2026.

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