# SailCalc — Sailboat Performance Ratios

> Sailboat Performance Ratios (iPhone/iPad app by Knotlog Software LLC.)

- Source: https://appshunter.io/ios/app/sailcalc/id6749644079 (this page in markdown: same URL + `.md`)
- Developer: [Knotlog Software LLC](https://appshunter.io/developer/1726750042)
- Category: Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 18.2 · 1 MB
- Languages: American English
- Released: 2025-08-12
- Data updated: 2025-11-30
- User reviews in markdown: https://appshunter.io/ios/app/sailcalc/id6749644079/reviews.md

## What is SailCalc?

Ever wondered how your sailboat really performs? Stop guessing and start calculating. SailCalc is the first and only app that puts powerful, industry-standard sailboat performance ratios right in your pocket.

Perfect for boat shoppers, club racers, and any sailor who loves to geek out on data, SailCalc helps you understand a boat's true potential.

KNOW YOUR BOAT:

Calculate Key Ratios: Instantly find a boat's Hull Speed, Displacement-Length Ratio (DLR), Sail Area-Displacement Ratio (SA/D), Capsize Screening Formula, and more.

Save & Compare: Keep a running list of your favorite boats to easily compare their performance profiles head-to-head.

Simple & Fast: Our clean interface is built for quick data entry at the dock, at home, or at a boat show. No confusing menus, just the numbers you need.

Whether you're deciding on your next boat or want to win the next dockside debate, download SailCalc and become a smarter sailor today.


## Version history (last 1 release)

### 1.0 — 2025-08-12

No release notes.

## More apps by Knotlog Software LLC

- [QuarterMaster Yacht Inventory](https://appshunter.io/ios/app/quartermaster-yacht-inventory/id1622049992)
- [Hurricane Watcher](https://appshunter.io/ios/app/hurricane-watcher/id6504117181)

All apps by Knotlog Software LLC: https://appshunter.io/developer/1726750042

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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 2025-11-30.*