KnotNow: Water Sport Tracking
Wing foil, windsurf & sail
Free · Designed for iPad. Not verified for macOS.
KnotNow is the water sport analysis app for wing foilers, windsurfers and sailors who want to understand what happened on the water - not just where they went.
Whether you are training for a podium, racing your peers or learning to foil, KnotNow helps you improve after every session.
Sessions: Deep-Dive Analytics
Dig into your activity dashboard with precise analysis and performance achievements. Tap dedicated tabs for Speed, Legs, Turns and Up/Down to analyse how you sailed or winged:
Velocity Made Good (VMG): Optimise your angles and efficiency.
Exit recovery times: See how much speed you carry through gybes and tacks.
Upwind pointing: Analyse your angles against the wind.
Individual leg details: Break down your session piece by piece.
Foiling Metrics: Track foiling time and distance as well as beginner-friendly "Walk of Shame" stats.
Precise wind settings: Customise your session's wind in 10-minute intervals.
Record: Built for the Water
Leave the guesswork on the beach. Start a live GPS session from the app and use essential on-the-water tools:
Set wind direction with the built-in compass.
Track live speed, duration and distance.
Mark laps on the fly.
Use the integrated race countdown timer for perfect starts.
Logbook: Track Your Progress
Watch your skills improve over time. Your digital logbook keeps your data organised so you can review your history, track personal bests, manage your race logbook and see where you rank on leaderboards.
Forecasts: UK Spot Data
Plan your next session with confidence. Get UK spot forecasts tailored specifically for winging and sailing locations, including:
Detailed wind and tide tables.
Water quality alerts and information where available.
Gear Shed: Optimise Your Setup
Log your boards, foils, sails, crew and specific tuning setups. Match your kit to your data to understand exactly what difference gear and tuning make.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New Forecast Graphs Compare side by side.
Sessions - New Goals and Challenges.
The developer, Rick Carter, 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:
- Health & Fitness
- Location
- Contact Info
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Rick Carter
- Size
- 51.4 MB
- Category
- Sports
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 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. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 KnotNow