Sail Scan
AI Powered Sail Shape Analyzer
Free · Designed for iPad. Not verified for macOS.
Beta now open: AI-powered sail shape analysis from one iPhone photo. Measure camber, draft and mainsail twist, then save and compare scans.
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!
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Fixes an issue where account-creation errors weren't shown — sign-up problems now display a clear message
• Clearer password requirements during sign-up
• Reliability improvements for login on poor connections
The developer, Nate McGuire, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Nate McGuire
- Size
- 21.6 MB
- Category
- Sports
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © SailScan 2026