Conversational AI running coach
Beta open. Built for runners who want progress without noise.
A coach that listens, remembers, and acts.
Your Apple Watch collects sleep, HRV, workouts, pace, power, and aches. Heyfox turns those signals into a plan that changes when real life does.
Chat first, data in support
Sync HealthKit and Apple Watch so the coach sees training load, sleep, HRV, pace, power, and recent history.
Tell the coach your race, your constraints, your aches, and the kind of runner you want to become.
The week is generated from structured coaching logic, then explained clearly before it changes.
Sessions stay native on the Watch. You run, Heyfox reads the result, and the coach keeps the thread.
Post-run feedback starts with what changed, why it matters, and what the coach will do next.
Every metric needs a coaching decision behind it.
01
32 km
adaptive week
A missed night, a heavy week, a knee warning: the coach can adjust the next session without turning your goal into chaos.
02
Z2
coach read
The coach translates pace, heart rate, effort, and mechanics into one useful read instead of a wall of metrics.
03
72h
memory window
Small signals stay in context, so the next decision knows what happened yesterday, last week, and during the last block.
coach first
Every number is paired with an interpretation. The app speaks before the dashboard does.
never generic
Chat is the default surface.
Early runner notes
"I no longer stare at numbers wondering what they mean. The coach tells me what to change and why."
Alex
Marathon block
"The best part is not the plan. It is how calmly it changes when my week falls apart."
Sam
Half-marathon goal
"It feels less like another dashboard and more like someone paying attention to my training."
Jordan
Apple Watch runner