Sailing Reference

Sailing Reference

by Oliver Shingler

0 ratings
3 reviews
$2.99
In-App Purchases

Details

  • Released
  • Updated
  • April 30, 2015
  • December 16, 2025

Features

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About

This comprehensive nautical navigation guide offers offline access to essential sailing information, including how-to guides, calculators for tides and courses, and flashcards for COLREGs. It also features a race timer and knot-tying animations.

Offline nautical reference guide
Tidal stream and time calculators
Course to steer estimation
COLREGs/IRPCS flashcards
Race timer and lap timer
Nautical knot animations
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What's New in Sailing Reference

2.1.4

December 16, 2025

Updated for new age rating compliance only

2

In-App Purchases

$0.99

Flashcards

Unlock additional flashcards for learning lights, shapes, flags and sound signals.

User reviews

Clear and Concise Revision & Reference

This App compliments the RYA and Colregs Books nicely and is laid out in a clear and concise way but with enough explanation to clear up some ambiguity that the books alone leave. I purchased the additional flash cards and knots add ins - both less than £1 each at time of writing, my only gripe would be that the flash cards don’t show the right answer when you get it wrong but in turn that does make you look up the answer and learn from it rather than to just remember the card. I can also see this app being useful in the future as it has functions others don’t to make calculations ‘on the go’.
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Great App

This is a really good app with everything in one place. Can I suggest adding a “dipping distance” calculator and a “tidal height” calculator - ladder type display. I wouldn’t think it would be too hard to add in and it would be very useful.
Also if you could save a set of data for secondary port calculations it would be beneficial - it would mean that as tho g change you do t have to input everything again.
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Concise and clarity in presentation

Finally an app for yacht master course with all the essentials. Simple graphics and calculations. Thanks please continue developing this app.

Developer apps

FAQ

What is Sailing Reference?

Sailing Reference is a comprehensive offline guide for nautical navigation. It provides essential information for sailors, including how-to guides, calculators for tides and courses, and flashcards for collision regulations.

Can I use Sailing Reference offline?

Yes, all content within Sailing Reference is fully available offline, meaning it does not rely on a data connection to function.

What kind of calculators are included in Sailing Reference?

Sailing Reference includes calculators for estimating a course to steer, interpolating tidal stream data, calculating times and heights of tide at secondary ports, and estimating VHF radio transmission ranges.

Does Sailing Reference have flashcards for rules of the road?

Yes, Sailing Reference includes 'Rules of the Road' flashcards covering collision scenarios. Additional flashcards for vessel lights, day shapes, flags, and sound signals are available as an in-app purchase.

Is there a race timer in Sailing Reference?

Yes, for the racing community, Sailing Reference features a race timer with a 5,4,1,0 countdown and a lap timer.

What nautical knots can I learn with Sailing Reference?

Sailing Reference includes instructional animations for tying common nautical knots. The Bowline Knot is included with the main application, while other knots are available as a bundled in-app purchase.

What is the price of Sailing Reference?

Sailing Reference is a paid application priced at $2.99.

How often is Sailing Reference updated?

The latest version of Sailing Reference is 2.1.4, and it was last updated on December 16, 2025. Updates typically occur to add new content or improve functionality.