Privacy Policy

Splits (“Splits”, “we”, “us”) is an adaptive multi-sport endurance coaching app for running, cycling, and triathlon, available at splitscoach.com. It connects to the training and wellness services you choose to link, and uses that data to generate and adapt personalised training plans, coaching insights, and race strategies. This policy explains what we collect, how we use it, and the choices you have.

Information we collect

We only collect data you provide or explicitly connect:

• Account information — the email address you sign up with, used to authenticate you.
• Training profile — the goals and preferences you enter (race distance and date, weekly mileage, available training days, sports, nutrition preferences, and any health or injury notes you choose to add).
• Connected services — when you link an account, we read the data needed to coach you:
  • Strava — your activities (including distance, duration, heart rate, pace, and route data).
  • Intervals.icu — your activities, training zones, planned workouts, and wellness data (including sleep, HRV, and body battery, which may originate from a connected Garmin device).
  • WHOOP — your recovery score, day strain, sleep, heart rate, workouts, and body measurements (height, weight, and max heart rate). WHOOP data is accessed read-only and only with your consent.
  • Oura — your daily readiness score, heart-rate variability (HRV), resting heart rate, sleep score, daytime stress, and workouts. Oura data is accessed read-only and only with your consent.

How we use your data

Your data is used solely to provide the coaching features of the app: building and adapting your training plan, computing fitness and readiness, generating your morning brief, workout debriefs, weekly reviews, race strategies, and answering you in coach chat. To generate this written coaching and these plans, relevant, limited portions of your data — including, where relevant, recovery, sleep, HRV, and readiness metrics from WHOOP or Oura — are sent to our AI provider (Anthropic) strictly to coach you. Anthropic acts only as a processor on our behalf, does not train its models on your data, and does not retain it. We use only your own data to coach you, never combine it with other users’ data, and we do not sell your data, use it for advertising, or share it for any purpose unrelated to coaching you. Your connected data is shown back to you in the app and is clearly attributed to its source.

Service providers

We rely on a small number of providers to run the app, each processing data only to provide their service to us:

• Supabase — database and authentication (data stored encrypted at rest).
• Vercel — application hosting.
• Anthropic — AI processing for coaching text and plan generation.
• OpenWeatherMap — race-day weather for race strategies.
• Strava, Intervals.icu, WHOOP, and Oura — the sources you connect.

Your choices and control

• Disconnect at any time.You can disconnect Strava, Intervals.icu, WHOOP, or Oura from the Settings page. Disconnecting WHOOP or Oura immediately and permanently deletes all data we hold from that service — your access credentials and the synced metrics — and stops all further access. You can also revoke Splits’ access directly from your WHOOP, Oura, Strava, or Intervals.icu account at any time.
• Deletion. You can request deletion of your account and all data we hold — including any WHOOP data previously synced — by contacting us at the address below; we action these requests promptly. Stored access credentials are encrypted at rest.

Data retention

We keep your data while your account is active. When you disconnect a service, we immediately delete the stored access credentials for it and stop accessing it. Disconnecting WHOOP or Oura additionally deletes all data we have synced from that service. To delete your account and everything else we hold, contact us at the address below and we will remove it promptly.

Changes to this policy

We may update this policy as the app evolves. Material changes will be reflected by the “Last updated” date above.

Not medical advice

Splits provides fitness and training guidance only. It is not a medical device and does not provide medical advice. Recovery and wellness data and our coaching outputs are not used to diagnose, treat, cure, or prevent any disease or medical condition. Always use your own judgement and consult a qualified professional for medical concerns.

Trademarks & attribution

WHOOP is a trademark of WHOOP, Inc. Oura is a trademark of Ōura Health Oy. Strava is a trademark of Strava, Inc. Intervals.icu and Garmin are trademarks of their respective owners. Splits is an independent application and is not affiliated with, endorsed by, sponsored by, or otherwise associated with WHOOP, Inc., Ōura Health Oy, or any other connected service. Data accessed through the WHOOP and Oura APIs is used in accordance with their respective API terms of use and brand guidelines.

Contact

Questions about this policy or your data? Email fphilipschmidt@gmail.com.