Privacy Policy

Information we collect

We treat some of this as health information. Our Consumer Health Data Privacy Policy explains how.

Information you give us

• Account: your email address, and a password if you set one (handled by our authentication provider).
• Quiz responses and your plan: the answers you provide, the profile they generate, and the daily plans, check-ins and garden you create.
• ADHD screener: your answers to the six-question adult ADHD screener in the quiz and your screener result, used to shape your plan. The screener is the World Health Organization Adult ADHD Self-Report Scale (ASRS-v1.1) Part A, used word for word. It is a screener, not a diagnosis. DayTrellis is not affiliated with or endorsed by the World Health Organization, Harvard University or New York University.
• A diagnosis you tell us about: if you choose to, whether a professional has diagnosed you with ADHD, and which type. You can also say you would rather not. You can change or remove it in Account on the website or Settings in the app.
• About you (optional): if you choose to answer, your usual daily schedule, what fills your days, when you focus best, your age range, your gender, how you'd like the coach to talk with you, and who you live with. You can skip any question, and most have a "Prefer not to say" choice. We use these answers only to fit your plan, and the coach where you've let it, to your life. We use your gender only to see, without your name, how well DayTrellis works for different people, and only if you agree when you answer. They're never sent to our analytics tools or to our newsletter. You can change or clear them in Account on the website or Settings in the app.
• Daily rating (optional): if you tap one, how your day went, on a scale of five faces. It's your own view of your day. It is not a diagnosis or a medical test. We use it, without names, to learn which daily actions seem to help people.
• Child profiles: if you add one, what you tell us about that child (the Children section below lists each item).
• Coach conversations: the messages you send to the AI coach.
• Preferences: reminder settings, and newsletter sign-up if you opt in.
• Support: anything you send us when you contact us, including calls to our phone line.

Information collected automatically

• Product analytics: behavioral events such as which features you use, which pillar a habit belongs to, which suggested daily task you swapped out, your plan tier, which link brought you here, and simple counts. We deliberately do not place your quiz answers, scores, or plan details beyond that, or message content into analytics.
• Our separate, de-identified content review is described under "Improving our content and services."
• Device and log data: session and device identifiers, plus standard technical logs such as IP address, kept by our hosting providers for security and reliability.
• Reminder emails: a record of each renewal or trial-ending reminder email we send or try to send you: the charge it was about, when, and whether it went through. We keep it so the same reminder isn't sent twice.

Payment information

Card payments on our website are processed by Stripe. Purchases made in the app are processed by Apple or Google, which handle your payment details and are also covered by their own terms and privacy policies. We do not receive or store your full card number.

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How we use your information

• To provide the service and generate your personalized daily plan.
• To send reminders and transactional messages you have asked for.
• To operate, secure, and improve the product, using aggregated or de-identified data where possible.
• To comply with law and enforce our terms.

We use your answers to build your plan automatically. We do not use them to make decisions about you that have legal or similarly significant effects. We do not use your personal information to train large language models.

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The AI coach

When you message the coach, we send our AI provider, Anthropic, what it needs to answer you: your message, the recent messages in that conversation, and a short summary of your tracker data. That summary is your quiz-based lifestyle profile, your latest weekly check-in scores, and how many daily actions you checked off on your most recent days. If you answered the optional About you questions, it also includes your usual schedule, what fills your days, your age range, who you live with and how you'd like the coach to talk with you. If a child profile is selected, the summary covers that profile instead, including whether you told us a clinician has diagnosed the child. We don't send the name saved on a child profile, but anything you type in a message is sent as written. Anthropic does not train its models on what we send it. It deletes it 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. To find relevant library articles, the first 1,000 characters of your message also go to our search provider, Voyage AI. Voyage AI turns them into a search code. We have turned off its use of our data for training, so it deletes the text as soon as it has made the search code. Please do not share anything you would not want processed this way. The coach is educational, may be inaccurate, and is never a substitute for professional care. How we may learn from conversations in aggregate is described just below.

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Improving our content and services

We may review coach conversations in aggregate, de-identified form to understand which topics people need help with, so we can create better educational content and shape new features and services. We look at themes and patterns, not individual identifiable conversations, and this analysis is never used to make decisions about you. To do this, our AI provider gives coach messages a short topic label, such as "sleep timing." This analysis keeps only the label, never the words you wrote. Crisis messages are counted but never labeled. Activity while a child profile is selected counts only toward a combined parent total, never on its own. We also look at which daily actions people complete or swap out. We study both only in combined form, without names, and we never report on a group smaller than 10 people. This helps us decide what content to add or improve. Like the rest of this review, it's never used to make decisions about you. When several daily actions suit you equally well, we vary which one you see, so we can learn which actions help most. Every action you're shown still fits your plan. If you've asked us to leave your information out, we don't use your plan to learn from. We also look at screener results, without names or email addresses, to understand whether DayTrellis helps. We won't make a public claim from them unless the evidence supports it. To leave your information out of this analysis, email support@daytrellis.com.

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Service providers we share with

We share information only with providers that help us run DayTrellis, each for a limited purpose:

• Supabase: database, authentication, and secure storage.
• Vercel: website and application hosting.
• Cloudflare: DNS, content delivery, and security.
• Stripe: payment processing.
• RevenueCat: manages subscriptions bought in the app through the App Store or Google Play. It receives an account ID, purchase records, and basic device details such as app version and country. It does not receive your quiz answers, daily plans, or messages.
• Resend: transactional email and reminders.
• beehiiv: our newsletter, if you subscribe.
• Anthropic: the AI that powers the coach.
• Expo: delivers updates to the DayTrellis app. Each time the app checks for an update, Expo receives a random install ID, the app version, the device platform, and standard technical details such as IP address. It does not receive your account, quiz answers, daily plans, or messages.
• Voyage AI: turns the first 1,000 characters of each coach message into a search code, so the coach can find relevant library content. It does not train on them, and it deletes them as soon as it has made the search code.
• xAI: runs our phone line, +1 (689) 388-7782. When you call it, an AI assistant from xAI answers, not a person. xAI receives your phone number, what you say, and a recording and transcript of your call. We use it to answer your questions. No one answers calls live. If you want us to follow up, leave a message with your name and how to reach you, and we will get back to you. xAI keeps the recording and transcript for 30 days, then deletes them. The phone line is optional. You can always email support@daytrellis.com instead.
• Google Analytics: aggregate usage analytics, with advertising features and cross-device signals turned off.
• Sentry: a crash-reporting service that tells us when something goes wrong in the DayTrellis app, so we can fix it. When it does, Sentry receives the error and where in the app it happened. It also receives the app version, your phone model and operating system version, and standard technical details such as IP address. It does not receive your name, email, account or user ID, quiz answers, daily plans, messages, health information, or what was on your screen.
• Apple and Google: app distribution, in-app purchases, and optional sign-in.

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Cookies and analytics

We use first-party functional storage for your session, sign-in, theme, and to avoid double-counting our own product analytics. We also use Google Analytics to understand, in aggregate, how the site is used; it sets its own analytics cookies. Google Analytics keeps detailed data about site visits for 2 months. After that, only combined totals remain in our reports. We have turned off Google's advertising features and cross-device signals. We do not use advertising trackers, and we do not sell your personal information or share it for cross-context behavioral advertising.

Our website does not respond to browser Do Not Track signals. We do not track you across other websites, and we do not allow other companies to collect your personal information over time and across other websites or apps when you use DayTrellis.

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How long we keep it

We keep your information while your account is open. We keep your coach conversations so the coach has context across sessions and you can revisit them. When you delete your account, they are deleted, and our backups drop them within 8 days. If a message sets off our crisis response, we keep a safety record to check that our response works, and we delete it after 12 months.

You can delete your account at any time, in Settings in the app or under Account on the website, or email support@daytrellis.com and we will do it for you. Deleting your account removes your profiles, answers, plans, check-ins, garden, About you answers, daily ratings, coach conversations and reminder email records, removes you from our newsletter, and cancels a subscription bought on our website. It does not refund a plan you have already paid for. If it has been less than 14 days since your first annual charge on daytrellis.com, you can still get that refund under our Terms, before or after you delete your account. It does not cancel a subscription bought through the App Store or Google Play. Cancel that in your store's subscription settings, or the store will keep billing you.

A few things are not removed when you delete your account:

• site activity from before you signed in that was never linked to you, which includes no name or email and is deleted 90 days after the visit;
• the de-identified, combined summaries of coach topics, reading, daily action use and daily ratings described under "Improving our content and services";
• what our AI providers already received. Anthropic deletes it within 30 days, unless the law requires it to keep it longer, or its safety systems flagged it, in which case it may keep it for up to 2 years. Voyage AI deletes it as soon as it has made the search code;
• what xAI has from a call to our phone line, which it keeps as described under "Service providers we share with". To ask about a call, email support@daytrellis.com with the number you used;
• payment records our payment processor must keep for tax and accounting law, and records Apple and Google keep of in-app purchases;
• the customer record RevenueCat, the service that manages app store subscriptions for us, keeps for anyone who used the app while signed in: an account ID, basic device details, and any in-app subscription.

A quiz you take without an account, and never link to one, is deleted 90 days after you take it. It includes no name or email.

More detail is on our account deletion page.

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Your choices and rights

• Access, correct, or delete your information, including deleting your account.
• Download a copy of your data from Account on the website or Settings in the app. The file is JSON. It includes your profiles, plans, check-ins, garden, quiz answers, coach messages, your About you answers, daily ratings, reminder email records, and your usage records. If you have added a child profile, that profile's data is included. We do not email the file.
• Turn reminders off in your settings, and unsubscribe from the newsletter from any issue.
• Depending on where you live, you may have additional rights to know, delete, correct, or opt out of the "sale" or "sharing" of personal information (we do neither).

To exercise any of these, email support@daytrellis.com.

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.

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California residents

If you live in California, this section adds to the rest of this policy.

• Identifiers: your email address, account ID, device and session identifiers, IP address, and your phone number if you call us.
• Commercial information: your plan, trial and purchase records.
• Internet activity: how you use the site and app, such as which features you open.
• Audio information: recordings of calls to our phone line.
• Inferences: the profile and daily plan we build from your quiz answers.
• Characteristics of protected classifications: your age range and gender, if you choose to give them in About you.
• Sensitive personal information: your password and sign-in details, and the health information on our Consumer Health Data Privacy Policy page.
• Information about a child you add to your account.

We get this information from you and your device. Purchase records come from Apple, Google, Stripe and RevenueCat. We use it for the purposes under "How we use your information". How long we keep it is under "How long we keep it" and on our Consumer Health Data Privacy Policy page. We give it only to the service providers listed above, and to Apple or Google when you buy in the app.

We do not sell your personal information or share it for cross-context behavioral advertising, and we have not done so. We do not sell or share information about anyone under 16, including a child you add.

We give California residents these choices. You can ask to know what personal information we collect, use and disclose, and to get a copy of it. You can ask us to delete it or correct it. We won't treat you worse for asking.

Email support@daytrellis.com, or use Download and Delete in Account on the website or Settings in the app. We check that the request comes from your account's email address. If you have no account, we may not be able to find your information, because we don't hold your name or email. Within 45 days, we will do what you asked or tell you why we can't. Someone you authorize can ask for you, and we will ask for proof that you authorized them.

Limit the use of my sensitive personal information.

We use sensitive personal information to provide DayTrellis to you and keep it secure. We also use screener results, without names or email addresses, to understand whether DayTrellis helps. To stop us using yours for that, email support@daytrellis.com. You can also withdraw your consent for health information at any time, as our Consumer Health Data Privacy Policy explains.

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Security

We use reasonable safeguards, including encryption in transit and owner-only database access rules. No method of storage or transmission is completely secure, so we cannot guarantee absolute security.

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Children

DayTrellis is for adults 18 and older. It is not directed to children, and a child cannot create an account or use the product. The account holder is always an adult.

A parent or caregiver may add a child profile for a child under 18 they support. That profile is a way for you to plan and track the support you give. It is not an account for the child, and the child never uses DayTrellis.

When you add a child profile, we store information you provide about that child so we can run the parent-facing plan and coach. That can include:

• a display name you choose
• their birth year (not a full date of birth), so we can fit daily actions to a rough age band
• answers you give to our own short questions about everyday life, such as mornings, homework, and time with friends, which we use to choose where their plan starts
• answers you give about their daily habits, including sleep, meals, movement, screen use, caffeine, and how predictable their routine is, so we can shape the daily actions we suggest to you
• whether you tell us a professional has diagnosed them with ADHD, has not, or you are unsure
• the daily activities you do with your child, your weekly answers about how your child seemed to you, and messages you send the coach while that profile is selected

Before the profile is created, we ask you to confirm that you understand what it tracks: the activities you do with your child, and a weekly check-in where you tell us how your child seemed to you. Your answers are your own view, not a measurement. We turn them into a simple weekly number that shapes the activities we suggest. It is not a diagnosis and not a grade of your child. The coach answers you, the parent or caregiver, never the child.

This information is treated as your account data, with the same access rules as the rest of your account. It is not sent to analytics or to the newsletter. Messages you send the coach while a child profile is selected may be part of our topic review. See "Improving our content and services." They go into one separate total for parents, never counted by child, family or person. We do this only if you said yes on that profile. When a child profile is selected, your coach messages and that profile's summary go to our AI providers as described under "The AI coach" above.

If you delete your account, child profiles and the information stored on them are deleted with it. You can also remove a child profile from Account. To access, correct, or ask us to remove information about a child profile, email support@daytrellis.com.

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Where your data is handled

DayTrellis is operated from the United States, and your information is processed there.

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Changes to this policy

We may update this policy from time to time. We will change the "last updated" date above and, for material changes, provide a more prominent notice.

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Contact

Questions? Email support@daytrellis.com. You can also find crisis resources here.

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