SailScan: Sail Shape & Trim
Measure camber, draft & twist
Free · Designed for iPad. Not verified for macOS.
Photograph your main or jib and get camber, draft, entry, exit and twist for every stripe. Our own computer vision model, built by sailors.
SailScan measures sail shape from a photo. Point your phone at the sail and it finds the draft stripes and gives you camber, draft position, entry, exit and twist for every stripe. The stripes are traced on the image so you can see exactly what was measured.
Built on a vision model trained on real racing sails, with the most accurate stripe reading we have ever shipped. Log wind speed, wind angle, boat speed, heel and GPS with each scan. Save scans, compare tack to tack and day to day, share a report, export the CSV, or post to the SailScan feed.
Mainsails and jibs. RC boats to super maxis and everything in between.
A training tool. Check your class rules before using it while racing.
Free. Open to everyone. sailscanapp.com
After this update you'll need to sign in once more. Your saved scans are kept.
- Clearer sign-in help: a wrong email or password now says so, with a quick way to create an account.
- Boat averages and comments.
- Compare shows front and back camber.
- A calmer Analysis screen, thinner stripe lines, and partly hidden stripes drawn dashed.
- Photos from your camera roll keep the time they were taken.
- Failed uploads retry when you come back to the app.
- The Main/Jib switch starts blank. Skip it and the scanner decides.
- Better VoiceOver labels.
The developer, Sail Scan LLC, 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 Linked to You
The following data may be collected and linked to your identity:
- Location
- Contact Info
- User Content
- Identifiers
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sail Scan LLC
- Size
- 35.8 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
- © 2026 Sail Scan LLC
