Sail Scan vs TackSense

SailScan is currently in beta. SailScan turns your iPhone into a sail shape analyzer. SailScan's computer vision reads the trim stripes to measure what your eyes can't quantify. Measurements include: • CAMBER DEPTH — how much shape you're carrying, stripe by stripe • DRAFT POSITION — where the depth sits, front to back • TWIST — how the top opens relative to the boom SailScan works on mainsails and jibs, from small one-design boats to grand prix racers and superyachts. Make real-time adjustments, save your scans, build your library, and start connecting your rig settings to increase speed and progress on the water. WHY IT MATTERS Good trimmers develop an eye over decades. SailScan gives you the numbers behind that eye—so you can repeat fast settings, compare tack to tack, and debrief with data instead of memory. HOW IT WORKS 1. Photograph your sail (main or jib) from below 2. SailScan detects the stripes and calculates shape metrics 3. Review, adjust, and save your scans 4. Compare scans across the day—track every setting change BUILT BY SAILORS SailScan was built by people who race and trim for a living. Join us!

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?