iOS chat and voice
Authenticated chat streams the coach reply, stores the thread, supports reactions, read state, quick replies, and voice transcription.
Marginal Gains Coach — current iOS beta
iOS endurance
coach.
Marginal Gains Coach is an iOS chat coach with athlete memory, race targets, planned workouts, readiness signals, activity sync, and proactive check-ins wired into one endurance coaching loop.
iOS chat
Apple Health
Strava
Hammerhead
The offering
What exists in
the beta.
Dossier and memory
Onboarding answers, goals, injuries, constraints, preferences, and prior decisions are saved as durable athlete context.
Race and workout calendar
The coach can add race targets, write an initial plan, and create, move, update, or delete planned workouts with guardrails.
Readiness and activity context
Apple Health, Strava, Hammerhead, planned workouts, completed sessions, sleep, HRV, resting HR, and weather inform the next call.
Current coach runtime
Not a plan generator.
A stateful coach.
Before it replies, the coach can assemble local time, persona, athlete profile, dossier, races, planned workouts, wellness, integrations, check-ins, and conversation history.
01
Onboard in chat
The coach asks one useful question at a time and writes the answer into the athlete dossier.
02
Write the target and plan
Race dates become structured targets. When there is enough context, the plan is written into the workout calendar.
03
Adapt from the actual week
Morning briefings, post-activity reactions, weekly reviews, and weather checks only fire when there is a concrete coaching reason.
Built around
The current beta.
The product today is a coach conversation, not a static dashboard: chat, voice, memory, race targets, planned workouts, activity analysis, and scheduled messages that land only when there is something useful to say.
It is built for cyclists, runners, triathletes, and long-course athletes who need the plan to adapt when recovery, weather, training history, or life changes the day.
Private beta
Join the next
coaching batch.
Marginal Gains Coach is already shaped as an iOS beta. The next cohort is for athletes willing to connect data, complete the onboarding interview, and let the coach write the plan.