# SailScan: Sail Shape & Trim — Measure camber, draft & twist

> Photo-based sail shape analysis for sailors. (iPhone/iPad app by Sail Scan LLC.)

- Source: https://appshunter.io/ios/app/sailscan-sail-shape-and-trim/id6762089009 (this page in markdown: same URL + `.md`)
- Developer: [Sail Scan LLC](https://appshunter.io/developer/6820238278)
- Category: Sports, Navigation
- Price: Free
- Rating: 5.00/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 34 MB
- Languages: American English
- Released: 2026-07-15
- Data updated: 2026-11-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sailscan-sail-shape-and-trim/id6762089009/reviews.md

## What is SailScan?

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

## Key features

- Measures camber, draft, and twist
- Identifies draft stripes from photos
- Logs wind speed, angle, boat speed, heel, and GPS
- Compares tack-to-tack and day-to-day scans
- Generates shareable reports
- Exports data as CSV

## Is SailScan safe?

Not enough ratings yet to assess SailScan.

## Is SailScan legit?

SailScan: Sail Shape & Trim has limited verification signals. The AppsHunter Legitimacy Score for SailScan is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/sailscan-sail-shape-and-trim/id6762089009/reviews.md

### 5/5 — Best sailing app!

*2026-10-21*

Very accurate. Made me faster

## Frequently asked questions about SailScan

### What does SailScan measure on a sail?

SailScan measures key aspects of sail shape, including camber, draft position, entry, exit, and twist for each identified draft stripe. It uses a vision model trained on real racing sails for accuracy.

### Can SailScan be used for different types of boats?

Yes, SailScan is designed to work with mainsails and jibs on a wide range of boats, from RC boats to super maxis. It's a versatile tool for various sailing disciplines.

### Does SailScan have ads?

No, SailScan is ad-free. It is a free application open to everyone, allowing for an uninterrupted user experience focused on sail analysis.

### How does SailScan help improve sailing performance?

By providing detailed measurements of sail shape and allowing comparison over time, SailScan helps sailors understand how their sails are performing. This information can be used to make adjustments for optimal trim and speed.

### What kind of data can be logged with SailScan?

With each scan, SailScan can log important environmental and performance data, including wind speed, wind angle, boat speed, heel angle, and GPS location. This provides context for sail shape analysis.

### Can I share my sail analysis data with others?

Yes, SailScan allows you to share reports of your sail analysis. You can also export your data as a CSV file for further analysis or record-keeping.

### Is SailScan suitable for competitive racing?

SailScan can be a valuable training tool for racers. However, it's recommended to check your specific class rules before using it during official races.

### What devices does SailScan support?

SailScan is available for iPhone and iPad devices. It is designed to leverage the camera capabilities of these Apple devices for its analysis.

## Version history (last 5 releases)

### 1.0.13 — 2026-11-03

- Change sail type: switch a scan between main and jib from the results screen, and the numbers update.
- Sign in now has an "I agree to the Terms of Service and Privacy Policy" checkbox. You only tick it once.
- New Settings screen. Scans are kept to improve SailScan; turn off "Keep my scans to improve SailScan" any time.
- Faster first scan after opening the app.
- Fixes and polish.

### 1.0.12 — 2026-11-03

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.

### 1.0.11 — 2026-10-06

• A new home screen: pick Main or Jib, then open the camera or choose a photo.
• Sign in with Face ID or Touch ID (passkeys) instead of typing your password.
• Share your measurements as a CSV spreadsheet, or as a Njord photo package with timestamped overlay images and optional notes. Main and jib readings stay separate.
• Photos and stripe lines stay aligned on rotated scans, and saved scans keep the matching photo and measurements.
• Automatic crash reporting so we can fix problems faster.
• Fixes and stability improvements.

### 1.0.9 — 2026-08-14

Fixes a camera regression that could leave the preview blank or prevent capture. Improves camera startup and capture reliability, with recovery controls if the camera cannot start.

### 1.0.7 — 2026-08-11

• 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

## Apps similar to SailScan

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [North Sails Sailscan](https://appshunter.io/ios/app/north-sails-sailscan/id6757445890) | — | Free | Sports |
| [TideMeasure: Sea Current](https://appshunter.io/ios/app/tidemeasure-sea-current/id6448216978) | 5.0 (1) | $19.99 | Sports |
| [SailWatcher – Sail Analysis](https://appshunter.io/ios/app/sailwatcher-sail-analysis/id6450710677) | — | Free | Sports |
| [Vantage Sailing](https://appshunter.io/ios/app/vantage-sailing/id6544807723) | 4.8 (14) | Free | Sports |
| [SailViewer](https://appshunter.io/ios/app/sailviewer/id6801887026) | — | Free | Sports |
| [Lights Out Sailing](https://appshunter.io/ios/app/lights-out-sailing/id6450532592) | 4.5 (8) | Free | Sports |

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-05.*