About Sailing Reference
Sailing Reference is the comprehensive reference guide for all of your nautical navigation needs. Ideal for beginner and seasoned sailors, the app contains information crucial to passing the various RYA Yachtmaster...
Sailing Reference is the comprehensive reference guide for all of your nautical navigation needs. Ideal for beginner and seasoned sailors, the app contains information crucial to passing the various RYA Yachtmaster shorebased navigation and practical courses. All content is fully available offline so is not reliant upon a data connection at all. There are handy calculators for quickly estimating a course to steer, interpolating tidal stream data, calculating times and heights of tide at secondary ports, and estimating VHF radio transmission ranges. The in-depth reference section includes dozens of illustrated and detailed how-to guides covering: . Plotting a Course to Steer . Calculating Leeway . Calculating Set and Drift . Compass Deviation and Magnetic Variation . Estimated Positions . Interpolating Tidal Streams . Calculating Depth to Anchor . Bridge Clearances . Secondary Port Calculations . Buoyage and Beacons . Safety and Distress . VHF Radio . Weather and Shipping Forecasts . and Many More! For those who need to brush up on their knowledge of the COLREGs / IRPCS, load up the flashcards for a quick quiz. Included with the app are a set of “Rules of the Road” flashcards covering numerous collision scenarios. Additional flashcards covering vessel lights, day shapes, flags and sound signals are available to purchase in-app as a single add-on pack. For the racing community there's a handy race timer with a 5,4,1,0 countdown and lap timer. Also available are instructional animations illustrating how to tie a number of the most common nautical knots. Each knot is accompanied by a brief description outlining suitable applications. The Bowline Knot is included with the main application, with other knots available to purchase in-app as a bundled add-on.
Version History Updated for new age rating compliance only 2.1.4 12/16/2025 Flashcard corrections 2.1.3 02/15/2025 Error corrections Bug fixes 2.1.2 11/17/2024 Error corrections 2.1.1 11/17/2024 Bug fix in CTS calculator when using a bearing to destination of 180 degrees 2.1.0 04/07/2023 Data pickers in the Secondary Tide Times calculator can now be dismissed by tapping outside the picker. 2.0.9 11/27/2022 Fixed bug in course to steer calculator 2.0.8 10/01/2022 Updated for iOS 15 2.0.7 09/30/2021 Minor corrections 2.0.6 02/12/2021 - Updated design - Improved layout for iPad - Corrected errors in flashcards - Fixes for dark mode 2.0.5 10/27/2020 - Updated design - Improved layout for iPad - Corrected errors in flashcards - Fixes for dark mode 2.0.4 07/23/2020 - Updated design - Improved layout for iPad - Corrected errors in flashcards - Fixes for dark mode 2.0.3 07/22/2020 - Updated design - Improved layout for iPad - Corrected errors in flashcards - Fixes for dark mode 2.0.2 06/01/2020 - Updated design - Improved layout for iPad - Corrected errors in flashcards - Fixes for dark mode 2.0.1 05/31/2020 - Updated design - Improved layout for iPad - Corrected errors in flashcards 2.0.0 05/30/2020 Error corrections 1.3.5 07/22/2019 Bug fixes and typo corrections 1.3.4 09/21/2018 Updated for iPhone X 1.3.3 10/31/2017 Updated for Super Retina Display 1.3.2 09/27/2017 - Added a useful racing information section - Added numeric flags - **Free** Race Timer with 5,4,1,0 countdown and lap timer. - Layout fixes for smaller displays - Layout optimisation for larger displays 1.3.1 06/16/2017 - Added a useful racing information section - Added numeric flags - **Free** Race Timer with 5,4,1,0 countdown and lap timer. - Layout fixes for smaller displays - Layout optimisation for larger displays 1.3.0 06/12/2017 Added App Preview video to store listing 1.2.4 03/16/2017 Added 2017 SRC Marine VHF channel changes, as announced by the MCA. 1.2.3 02/23/2017 Optimised layout for 4.7 and 5.5 inch screens. 1.2.2 09/28/2016 Corrections to Rules of the Road section 1.2.1 08/05/2016
Previous Versions
Here you can find the changelog of Sailing Reference since it was posted on our website on 2016-10-19 04:50:32.
The latest version is 2.1.4 and it was updated on 2026-06-23 09:56:35. See below the changes in each version.
Sailing Reference version 2.1.4
Updated At: 2026-06-02
Changes: Version History Updated for new age rating compliance only 2.1.4 12/16/2025 Flashcard corrections 2.1.3 02/15/2025 Error corrections
Bug fixes 2.1.2 11/17/2024 Error corrections 2.1.1 11/17/2024 Bug fix in CTS calculator when using a bearing to destination of 180 degrees 2.1.0 04/07/2023 Data pickers in the Secondary Tide Times calculator can now be dismissed by tapping outside the picker. 2.0.9 11/27/2022 Fixed bug in course to steer calculator 2.0.8 10/01/2022 Updated for iOS 15 2.0.7 09/30/2021 Minor corrections 2.0.6 02/12/2021 - Updated design
- Improved layout for iPad
- Corrected errors in flashcards
- Fixes for dark mode 2.0.5 10/27/2020 - Updated design
- Improved layout for iPad
- Corrected errors in flashcards
- Fixes for dark mode 2.0.4 07/23/2020 - Updated design
- Improved layout for iPad
- Corrected errors in flashcards
- Fixes for dark mode 2.0.3 07/22/2020 - Updated design
- Improved layout for iPad
- Corrected errors in flashcards
- Fixes for dark mode 2.0.2 06/01/2020 - Updated design
- Improved layout for iPad
- Corrected errors in flashcards
- Fixes for dark mode 2.0.1 05/31/2020 - Updated design
- Improved layout for iPad
- Corrected errors in flashcards 2.0.0 05/30/2020 Error corrections 1.3.5 07/22/2019 Bug fixes and typo corrections 1.3.4 09/21/2018 Updated for iPhone X 1.3.3 10/31/2017 Updated for Super Retina Display 1.3.2 09/27/2017 - Added a useful racing information section
- Added numeric flags
- **Free** Race Timer with 5,4,1,0 countdown and lap timer.
- Layout fixes for smaller displays
- Layout optimisation for larger displays 1.3.1 06/16/2017 - Added a useful racing information section
- Added numeric flags
- **Free** Race Timer with 5,4,1,0 countdown and lap timer.
- Layout fixes for smaller displays
- Layout optimisation for larger displays 1.3.0 06/12/2017 Added App Preview video to store listing 1.2.4 03/16/2017 Added 2017 SRC Marine VHF channel changes, as announced by the MCA. 1.2.3 02/23/2017 Optimised layout for 4.7 and 5.5 inch screens. 1.2.2 09/28/2016 Corrections to Rules of the Road section 1.2.1 08/05/2016
Sailing Reference version 2.1.4
Updated At: 2025-12-16
Changes: Updated for new age rating compliance only
Sailing Reference version 2.1.3
Updated At: 2025-02-15
Changes: Feb 15, 2025
Version 2.1.3
Flashcard corrections
Sailing Reference version 2.1.2
Updated At: 2024-11-17
Changes: Nov 17, 2024
Version 2.1.2
Error corrections
Bug fixes
Sailing Reference version 2.1.0
Updated At: 2023-04-07
Changes: Apr 7, 2023
Version 2.1.0
Bug fix in CTS calculator when using a bearing to destination of 180 degrees
Sailing Reference version 1.2.2
Updated At: 2015-04-30
Disclaimer
Official App Store Link
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