Last updated: June 27, 2026
Attune is designed to keep your health data on your device by default. Workout plans, logs, how sessions felt, and your athlete profile (name, age, sport, goal, experience) are stored locally on your iPhone. Apple Health data (heart rate variability, resting heart rate, sleep, and training load) is read on-device to compute your readiness. We do not sell your data and use no third-party advertising or tracking.
To generate and adapt your training plan and to power the conversational Coach, Attune sends the following data to our coaching service at attunefit.com, which is operated by us:
Third-party AI provider. Our coaching service uses the Claude large-language model provided by Anthropic, PBC to generate your coaching. The data above is transmitted to Anthropic solely to produce your plan and coaching responses. Anthropic processes this data under its commercial terms and does not use it to train its models. We have confirmed that Anthropic provides the same or equal protection of your data as described in this policy. We do not sell this data, and it is used only to coach you and to remember your history between sessions.
Attune asks for your explicit permission before any of the data above is sent to our coaching service or to Anthropic. You can use the free plan without sharing this data. You can turn AI coaching and data sharing on or off at any time in the app under Settings → Privacy, and you can request deletion of any coaching memory we hold by contacting us.
If you email us or previously joined our early-access list, we store your email solely to respond to you and to send you updates about Attune. You can ask us to remove it anytime.
The Coach subscription is billed through the Apple App Store. We never receive your payment details; Apple manages billing. You can manage or cancel anytime in your Apple ID settings.
Attune supports youth athletes and adjusts programming to be age-appropriate. For users under the age of digital consent, a parent or guardian should set up and manage the account.
You can use the free plan without sending data to our coaching service. You can request deletion of any coaching memory we hold by contacting us.
Questions? Message the coach anytime in the app, or use the chat on this site.