Consumer Health Data Privacy Policy

We treat some of what you tell DayTrellis as consumer health data. We handle it the same way for everyone, wherever you live. This page says what that information is, why we collect it, who receives it, how long we keep it, and what you can do. It adds to our Privacy Policy.

What we collect

• Your answers to the six-question ADHD screener, in the quiz and in your check-ins, and your screener results.
• Your answers to the quiz's lifestyle questions, such as sleep, meals and movement.
• Whether you told us a professional has diagnosed you with ADHD, and which type, if you choose to tell us.
• Your weekly check-in answers and scores.
• Your daily "How did your day go?" ratings, if you choose to give them.
• If you add a child profile: what you tell us about that child. That includes their daily habits, your weekly answers about how they seemed, and whether a professional has diagnosed them.
• What you write to the coach, which can include health information.
• What you say to our phone line, if you use it, which can include health information.
• The profile and daily plan we build from these answers.

Where it comes from. From you, and from what we work out from your answers, such as your profile and plan. If you add a child profile, from what you tell us about your child.

Why we collect it

• To build your daily plan and change it as you go.
• To run your weekly check-in and show your progress.
• To let the coach answer you. We also use Anthropic's AI to check each message for signs you may need urgent help.
• To answer you when you call our phone line.
• To keep DayTrellis secure and working.
• To understand whether DayTrellis helps and which topics people need help with. When we do this, we leave out your name and email address. Anthropic, our AI provider, tags each coach message with a short topic, such as "sleep" or "homework." For this review, we look only at those topics, in totals of 10 or more people. Messages you send while a child profile is selected go into one separate total for parents. We never count them by child, family or person. We don't use the other things you tell us about a child for this. We do this only if you said yes on that child's profile.

We never sell it, and we never use it for ads.

Who receives it

• Supabase stores it for us.
• Vercel and Cloudflare carry it between your device and us.
• Anthropic, our AI provider, receives your coach messages, the recent messages in that conversation, and a short summary of your tracker data.
• Voyage AI, our search provider, receives the first 1,000 characters of each coach message, to find library articles.
• xAI runs our phone line. If you call it, xAI receives your phone number and what you say, so its AI assistant can answer you. This can include health information you choose to share.
• Stripe and RevenueCat handle payments and subscriptions, Resend sends our emails, and beehiiv sends our newsletter if you subscribe. They receive your email address or account ID, not your answers, plan or messages. If you buy in the app, Apple or Google handles the purchase under its own terms.

Google Analytics counts visits to our public pages, such as the homepage and the library. It never runs on the quiz, your plan, the coach or your account.

We do not allow other companies to collect your health information over time and across other websites or apps when you use DayTrellis.

Each company listed above, except Apple and Google, works for us under a contract that limits what it may do with your information. We do not give your health information to any other company, unless a court order or the law makes us.

How long we keep it

• While your account is open, we keep your health information, including your coach conversations. When you delete your account, we delete it, and our backups drop it within 8 days.
• If a message sets off our crisis response, we keep a safety record of what set it off and which reply we showed. We keep it to check that our response works, and we delete it after 12 months.
• A quiz taken without an account, and never linked to one, is deleted 90 days after you take it.
• Anthropic deletes what it receives within 30 days. It may keep a message longer if the law requires it, or for up to 2 years if its safety systems flag the message. It may keep its safety scores for a message for up to 7 years.
• xAI keeps the recording and transcript of a call to our phone line for 30 days, then deletes them.
• Voyage AI deletes what it receives as soon as it has made the search code, unless the law requires it to keep it.
• Deleting your account does not reach what xAI has from a call. To ask about it, email support@daytrellis.com with the number you used.

What you can do

• See it. Download a copy in Account on the website or Settings in the app, or email us. You can also ask for a list of every company that has received it, with a way to contact each one.
• Delete it. Delete your account, or email us. You can clear your diagnosis answer in Account on the website or Settings in the app at any time.
• Withdraw your consent. Turn it off in Account on the website or Settings in the app. If you withdraw consent for your screener and diagnosis answers, we delete them, and your plan carries on from your other answers. If you withdraw consent for the coach, we stop sending your messages, so the coach can't answer you until you turn it back on. Your past conversations stay until you delete your account. If you withdraw consent for a child profile, we delete that profile and what you told us about the child.
• Leave out our measurement. Email us, and we will keep your information out of our work to understand whether DayTrellis helps.

To ask for any of this, email support@daytrellis.com. Within 45 days, we will do what you asked or tell you why we can't. We won't charge you more or treat you worse for using these choices. If you withdraw a consent, only the feature that needs it changes.

If we say no. Reply to our answer with the word Appeal. We will answer your appeal within 45 days. If we turn it down, you can contact your state's Attorney General.

Effective November 7, 2026. If we change this page in a way that matters, we will tell you before the change takes effect.