Report updated Apr 28, 2026
TVMDC Sailing & Marine Navigation Calculator
For sailors and marine navigation students learning to work with nautical charts.
Overview · Full Intel report in progress
TVMDC Sailing & Marine Navigation Calculator is an established navigation app that is a paid app. With a 3.0/5 rating from 2 reviews, it shows polarized user reception.
What is TVMDC Sailing & Marine Navigation Calculator?
Current Momentum
v4.0
This update from Apple will improve the functionality of this app. No new features are included. Improved usability with new dynamic color of Calculate button to help user understand when inputs have changed or not. Improved textfield inputs now do not require user to hit return to input values. Updated for iOS 10.x Minor bug fixes.
Competition
Rivals identification in progress
7-Day Rank Pulse 🇺🇸
NavigationRating Pulse 🇺🇸
What makes this app unique?
What Does It Look Like?
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What Are The Key Features?
Provides instant conversion between True, Magnetic, and Compass bearings.
Calculates set and drift factors based on two known navigational fixes.
Determines the required course to steer to a destination while factoring in TVMDC and set and drift corrections.
Allows for the input of local chart variation, annual magnetic increase, and specific boat compass deviation.
How much does it cost?
Who Built It?
peter hopper
Providing specialized utility and navigation tools for niche professional and hobbyist needs, from EV travel to marine navigation.
Portfolio
3
Apps
What other apps does peter hopper make?
Explore the full peter hopper report
Portfolio breakdown, audience, momentum, and every app published by peter hopper.
Analysis in progress, available soon
What do users think recently?
Analysis in progress, available soon
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
Analysis in progress, available soon
What is the competitive landscape for TVMDC Sailing & Marine Navigation Calculator?
How's The Navigation Market?
How does it evolve in the Navigation market?
Rank progression
10 active rankings tracked — 30-day window
Strategic analysis coming soon
SWOT, key takeaways & outlook
The outtake for TVMDC Sailing & Marine Navigation Calculator
Key Takeaways
This is a niche utility app focused on simplifying manual navigation math for students and recreational sailors.
Where Is It Heading?
Trend analysis
Available very soon