Foil Run

Parawing · Wing · Downwind SUP

Advanced analysis for your foiling.

Track how you ride, understand how your gear performs, and build a clearer picture with every session.

Free · Imports any GPX · One TestFlight invite includes iPhone + Apple Watch

foil.run
A parawing session at Hood River with climbs, runs, tacks, and gybes drawn over the track beside the session wind estimate

The Ride

Every climb, every turn, every run.

Foil Run finds the structure of the ride: the climbs back upwind, every tack and gybe, the runs and glides back down, each measured against a wind estimate that keeps sharpening as you ride.

The climb view with four climbs on the map and a selected climb showing span VMG, effective VMG, and maneuver recovery costs

The Climb · The Turns

Riding parawing laps? Every climb back upwind is found and scored on its own — span VMG, effective VMG with the cost of its turns — and every tack and gybe followed to full recovery, with performance stats for every turn.

The downwind run view with one run highlighted from top to bottom and its path, glide, and turn-texture measurements

The Run Down

Runs, glides, and on-foil time: your longest glide, your fastest, and how hard you carve or how silly you wiggle.

The Season

A season tells you what a session cannot.

Your Logbook brings every session, hour, distance, and setup, organized by your favorite places and gear.

Clean-turn rates, lifetime distance, hours on water: proof that the sessions are adding up to something.

Foil Run Logbook showing lifetime distance, sessions, hours on water, clean-turn rates, and progress over time

The Gear

Settle the gear debate with evidence.

Advanced analysis accounts for changing conditions climb by climb, building a clearer picture of how your gear performs over time.

A Wingprint chart showing the distribution of upwind VMG for one sail and the amount of supporting evidence

Wingprints

Every sail builds a Wingprint: the distribution of your upwind VMG on that setup, honest about how much evidence is behind it.

Compare

Put real sessions on one overlay and see what holds up across different days, winds, and setups.

Three sessions compared side by side with each setup's upwind VMG, a wind-relative rose, and all three tracks on one map

Courses

Compete with your friends on real courses.

Set a gate-to-gate course at your spot. Every session that crosses it lands on the leaderboard: fastest run, personal bests, and yes, Wiggliest Motherf*cker.

Synthetic Point · 558 m gate-to-gate◆ Official
01Rider One64.8 turns/km
02Rider Two57.3 turns/km

Public leaderboard · Wiggliest Motherf*cker

On Your Wrist

◆ Alpha

Live numbers while you ride.

See live upwind VMG during your climbs and Last Wave when you kick out.

Start and stop with a quick voice note. Foil-specific AI files your gear and conditions with the session, so every ride lands labeled.

From your ride notes

The rider headed out in insanely windy and wild conditions on super tiny gear. Post-session, they described the experience as absolutely bonkers and one for the books.

Sail Pocket Rocket 2.4 m²Foil Armstrong MA 590 cm²Wind Wild

A real session's voice note, made structured

Get the iPhone + Apple Watch beta →Watch app included · may install automatically · open it on your Watch
Apple Watch showing live upwind VMG of 5.8 knots during a climb, with speed, heart rate, and distance
Live upwind VMG
Apple Watch showing the last wave immediately after kick-out: one minute forty-two seconds and 512 metres
Last Wave
Apple Watch recording a voice note about the rider’s gear, wind, and goals
Voice notes
Apple Watch session recap showing 24.7 kilometres, the longest wave, session time, and heart rate
The recap

Redesigned faces · Design preview