How it works
Your work. A clearer next step.
Check in, log your work and return to your progress. ARC connects that record with optional AI guidance and distinct views for the people supporting you.
Current audience and access. ARC Athlete is an iPhone experience for players aged 13 and over in competitive youth soccer clubs. The beta uses TestFlight invitations from participating clubs. Android access is not available yet. ARC is currently in a controlled beta, not open public enrollment.
Connected development
Useful context. A clearer next step.
ARC brings the work together in an athlete-owned record. Relevant context supports optional AI guidance and the people helping that athlete develop.
- 01 / The work
Capture the moments.
Training, matches and daily check-ins contribute useful context.
- 02 / The record
Build the picture.
Activity and development context grow into a record the athlete owns.
- 03 / AI guidance
Consider what comes next.
With permission, Kai or Mira uses relevant context to make guidance more useful.
- 04 / Shared context
Support with perspective.
Coaches, parents and clubs receive distinct views within their sharing boundaries.
A living record
Built through the work already happening.
Development happens over time. As athletes use ARC to log training and matches, track readiness, take on challenges, follow their schedule, and reflect on their progress, ARC builds a more complete record of their development.
Appropriate input from coaches and other experiences can add context to that record, helping ARC understand more than any single activity or moment can show.
Less to maintain. More to build on.
ARC is designed to develop useful context through normal use. Athletes shouldn't have to constantly update a profile or enter information simply for the sake of collecting data.
Check-in → Your day
How you feel changes the day.
In the ARC app our pilot players use, the daily check-in includes anything that hurts. Players can mark where it hurts and how it feels. ARC never pushes training on a day a player is hurt or in pain.
The plan changes. Kai or Mira explains.
ARC’s training engine sets the load. Kai and Mira explain the plan; they never override it.
When a player reports being injured, their coach sees only “out” or “limited”—never what or where.
ARC never diagnoses an illness, injury or any condition. ARC is not a medical device.
AI coaching
Context makes guidance more relevant.
Generic guidance treats every athlete the same. With the athlete's permission, ARC can use appropriate context from the record to make AI coaching more relevant to their activity, schedule, and development.
Kai and Mira are equal AI coach choices. They can help athletes understand what they're seeing, think through what comes next, and get guidance that reflects their development rather than starting from scratch with every conversation.
Kai
MiraKai and Mira are optional AI guides, not medical professionals. ARC does not provide medical diagnosis or promise injury prevention. Injuries and medical concerns belong with qualified professionals.
The athlete's record is the foundation.
AI coaching uses the context ARC makes available for a conversation. It doesn't replace the athlete's record, and it doesn't need unrestricted access to everything ARC knows in order to be useful.
Privacy
Connected doesn’t mean everyone sees everything.
Your daily check-in answers never leave your phone for anyone to see. Coaches, clubs and parents never see how you slept, how sore you are, or your stress. The one exception is your coach's AI replies: if you allow them, today's sleep, soreness and stress go with your message so the reply fits your day (see "When you talk to Coach Kai").
Daily summaries and adult views
Once you join a team or link a parent, ARC stores a summary of each day on its servers (app version 1.7 and later; earlier versions store it from the start): whether you checked in, what you logged, your challenge scores, and a one-word description of how you are carrying your week (like "Fresh" or "Fatigued") and, in app version 1.7 and later, the word for how ready you said you feel that day (like "Steady" or "Sharp"), never your readiness number.
You choose who sees that summary. A coach sees it only after you join their team with a code, and only from the day you join. A parent sees it only after you give them a code from the app, and never sees your one-word state (from app version 1.7 they do see your readiness word, never the number), or your playing time and how hard a match felt.
AI replies and permission
Your coach in the app (Kai, or Mira if you chose Mira) can answer with replies written by AI from our provider, Anthropic. ARC asks you before anything is sent the first time, and you can change your answer at any time in Settings → AI replies, from the menu at the top left (in versions before 1.4, Profile → AI replies).
Your perspective