Privacy policy

Aion keeps what you put into it so the app can do its job: your account, your training, your food log, your photos and your messages. We do not sell it, we do not use it for advertising, and we do not track you across other apps or websites. You can delete your account and everything in it from inside the app.

• Your account: name, email address, sex at birth and year of birth. Your password is stored only as a hash that we cannot read.
• Your body measurements, if you enter them: height, weight, weigh-ins and body-fat estimates.
• Your safety answers: the seven yes-or-no safety questions (for example chest pain with activity, or pregnancy) and whether your training is on hold.
• Your training: your plan, the sets you log, your check-ins and your targets.
• Your food log, if you use it.
• Your photos: progress photos, which are private to you unless you give a coach access, and photos you post in a group.
• Your messages: conversations with a coach, group posts and chat, and your conversation with the AI trainer.
• Payments: if you pay a coach through Aion, the card is handled by our payment processor. Aion keeps the card brand and a record of each charge, never the full card number.
• Notifications: if you turn them on, the address your device gives us to send them to.

Aion does not keep medication names, doses, lab results or diagnoses, and asks you not to type them into the app.

To run your account, show you your plan and progress, let you and your coach or group talk to each other, take payment for coaching you have agreed to, keep people safe (the safety check, and review of reported messages and posts), and send you the emails and notifications you would expect. We do not use it for advertising.

The AI trainer’s answers, plans and weekly check-ins are written by Claude, an AI model made by Anthropic, a separate company. Nothing is sent until you agree inside the app. When you use it, Aion sends Anthropic what you type and the conversation so far; your age, sex at birth, height and weight; your current plan; any progress photos you choose to send; and, only if you switch it on, your training, food and weigh-in record. We do not send your name, email address or payment details.

Separately, a photo posted in a public group is checked automatically by the same AI model before others see it, to keep unsuitable images out.

We use these companies to run Aion. Each handles only what its job needs.

• Supabase: stores the database and your photos, and runs sign-in.
• Vercel: hosts the app.
• Anthropic: the AI model, as described above.
• Easy Pay Direct: processes card payments for coaching.
• Resend: sends account emails, such as confirming your address.
• Apple and Google: deliver notifications to your device.
• The U.S. Department of Agriculture food database: answers food searches. It receives the words you search for, not who you are.
• The exercise video service: plays demonstration videos. It receives the request for the video, not who you are.

Your coach sees what you share with them: your messages, your plan and logs, and your photos only if you give access. Members of a group see what you post there. We may disclose information when the law requires it. [Counsel: confirm the list of processors, and add any terms needed for state privacy laws.]

• Delete everything: Account, then Delete my account. This removes your account and what is in it. [Counsel: state what, if anything, must be kept and for how long, such as payment records.]
• The AI trainer: you can decline it, and you can switch its access to your record on or off at any time.
• Photos and coaches: you choose whether a coach can see your progress photos, and can take that back.
• Notifications: on or off in the app and in your device settings.
• A copy or a correction: write to contact@health-aion.com.

Aion is for people aged 14 and over. Groups, messaging with other members and the link to Aion’s website are for adults aged 18 and over. We do not knowingly keep information from anyone under 14; if you believe we have, write to us and we will delete it. [Counsel: confirm the age rules and any parental-consent requirement.]

Information is encrypted in transit, and access inside Aion is limited to what each role needs. No system is perfectly secure. If this policy changes in a way that matters, we will tell you in the app before it takes effect. Questions and complaints: contact@health-aion.com.