TideMeasure vs TackSense

Measure sea-current speed and direction from your iPhone in minutes—built for sailors, coaches, and race teams. Map readings across the race area, review history, export CSV data, and share measurements with your team for smarter tactical decisions. WHY TIDEMEASURE Even a small current can change boat speed, laylines, mark roundings, and the favored side of the course. TideMeasure turns a simple drift test into a clear speed-and-direction result without specialized hardware. HOW IT WORKS 1. Drop a floating stick or small object into the water. 2. Tap Start as it begins to drift. 3. Retrieve it after a short measurement. 4. Tap Stop to see current speed and direction. FEATURES • Measure current speed and direction using GPS • View results in m/min, m/s, cm/s, or knots • Map measurements across the race area • Review saved measurements and history • Create or join a team and share readings • Select and export measurements as CSV • Continue measuring offline TideMeasure is designed for race preparation, coaching, training sessions, and building a clearer picture of current around the course. Location access is required during measurements and for displaying results on the map. Apple Maps data is used for mapping.

TackSense is a simple sailing aid that helps you understand your point of sail from wind direction, boat heading, wind speed, and gusts. Enter the conditions, and TackSense shows a clear visual guide for the sailing angle, likely sail position, reefing considerations, and downwind caution zones. It is designed for quick use on deck when you want a fast sanity check without clutter, accounts, or unnecessary complexity. TackSense can help you identify whether you are close-hauled, reaching, running, near the no-go zone, or in a wing-on-wing zone. It also provides practical trim suggestions such as when sails should be trimmed in, eased out, or when a more conservative setup may be appropriate. Features * Point-of-sail calculation from wind direction and heading * Wind speed and gust input * Clear sail-position diagram * Main and headsail setup suggestions * Reefing considerations based on wind strength and gusts * Downwind caution notes, including wing-on-wing and gybe risk zones * Simple terminology for newer sailors * Works on-device * No account required TackSense is not a chartplotter, navigation system, weather service, or replacement for seamanship. It provides general sail-setup guidance based on the information you enter. Always consider local conditions, sea state, crew ability, vessel setup, and official weather information before sailing. Built for sailors who want a fast, visual answer to a basic but important question: What point of sail am I on, and how should the sails roughly be set?