Observed arrival · 2026-10-20
TideTutor: Day Skipper tidal-calculation practice
A practice app in prelaunch, TideTutor focuses on the tidal calculations sailing students meet in the Day Skipper theory course, with free guides and an interactive example on the site.
- For
- Day Skipper sailing theory students
- Worth noticing
- The sample distinguishes common slips, including confusing a tide’s rise with its height and using the wrong tidal-curve reference.
Field notes
An embedded rule-of-twelfths exercise lets visitors submit a height, reveal up to three graduated hints, then inspect the arithmetic from range to final tide height. Five free guides cover the listed Day Skipper topics, including secondary-port interpolation and course-to-steer vector work. The mobile app is described as forthcoming; its planned features include offline use, progress tracking, spaced review, and topic-level mistake diagnosis.
Observed signals
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Editorial observations of this landing page, not a rating.
One card from the complete issue