Great app
It shows lots of cool foiling locations within an easy drive
Great app
Really great ui and functionality love it!
Free
About
Track your speed and technique for various watersports using GPS. This open-source app works offline and offers detailed performance metrics for wingfoiling, kitesurfing, and more. Analyze your sessions with advanced visualization tools.
✓GPS speed and technique tracking
✓Offline functionality
✓Standalone Apple Watch app
✓Detailed speed metrics
✓Session visualization tools
✓Data import/export
Show original description
+1
What's New in OpenWater
1.1
August 20, 2026
misc bug fixes
User reviews
Developer apps
FAQ
What watersports can OpenWater track?
OpenWater is designed for wingfoiling, parawinging, downwinding, windsurfing, kitesurfing, and sailing. It provides specific metrics tailored to each of these activities.
Does OpenWater require an internet connection?
No, OpenWater works entirely offline. It does not require an internet connection to record or analyze your sessions, making it ideal for use on the water.
Can I use OpenWater without my phone?
Yes, the Apple Watch app runs standalone. You can start a session directly from your watch without needing your phone nearby or even installed on the watch.
How does OpenWater measure speed accurately?
Speed is measured using the receiver's Doppler measurement, not by differencing positions. This method provides more accurate speed readings, especially for fast-moving activities.
What kind of speed metrics does OpenWater offer?
OpenWater offers a wide range of speed metrics used by the speedsurfing community, including 2-second peaks, best 10-second averages, various distance records (100m to 10km), Alpha 500, and 30-minute/1-hour averages.
Can I import my past session data into OpenWater?
Yes, OpenWater supports importing data from GPX, TCX, FIT, and CSV files. This allows you to bring in data from other devices and apps like Garmin, Coros, and Suunto.
Does OpenWater have ads?
OpenWater is ad-free. As an open-source application, it focuses on providing a clean and uninterrupted user experience without advertisements.
What is the age rating for OpenWater?
OpenWater has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions.