MARGINAL GAINS
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Current iOS beta

A coach
in your
pocket.

Marginal Gains Coach is the iOS coaching layer we have now: chat, voice, onboarding, athlete memory, races, planned workouts, readiness signals, activity sync, and proactive messages.

TUE

Readiness

87

Go hard today

Today

VO₂ intervals — 1h05

5×4min @ FTP+12

Screens

Features

What is implemented.

Chat, Voice, Quick Replies

The iOS surface supports streaming chat replies, voice transcription, reactions, read state, and quick replies generated from the coach message.

Dossier and Memory

Onboarding answers, injuries, preferences, goals, race details, and important coaching decisions are stored so the coach does not restart every chat.

Calendar Actions

The coach can create race targets, build the initial training plan, and create, move, update, or delete planned workouts with confirmation rules.

Proactive Coaching

Morning briefings, post-activity reactions, weekly reviews, thread follow-ups, and weather checks run only when the data gives the coach a reason.

TestFlight Beta

Coming to iOS in
2026.

We're onboarding a small beta in batches. Email us for the next TestFlight slot and include your sport, goal, current training volume, and which data sources you can connect.