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Privacy

Privacy Policy

Last updated: October 7, 2026

MarMilo helps families encourage positive habits through connected experiences for parents and children. This policy explains what information we collect, why we use it, and the choices available to families.

1. Who we are

MarMilo is currently operated by the MarMilo team. Questions or privacy requests can be sent to hello@marmilo.app.

2. Information we collect

  • Parent account information: email address, authentication identifiers, and account timestamps.
  • Child profile information provided by a parent or guardian: profile name, selected avatar, pet name, and family association. We do not require a child to provide an email address.
  • Family activity and progress: configured behaviors and incentives, completed activities, earned and spent MarMilo Stars, redemptions, and related progress history.
  • App state: settings and progress needed to keep experiences synchronized, such as pet, room, inventory, garden, brushing, and activity configuration.
  • Usage and technical information: app interactions, feature usage, app version, platform, timestamps, diagnostics, and server logs used to understand performance and fix problems.
  • Information you send us: messages, feedback, and bug reports submitted through our website or by email.

3. How we use information

  • Provide authentication, family profiles, synchronization, rewards, activities, and progress features.
  • Show parents information about their children's configured activities and progress.
  • Maintain security, prevent misuse, troubleshoot errors, and improve reliability.
  • Understand which features are useful and improve the MarMilo experience.
  • Respond to support, feedback, privacy, and account requests.

We do not sell personal information and we do not use children's data for targeted advertising.

4. Children's privacy and parental control

MarMilo Parents is intended for parents and guardians. Child profiles and their settings are created and managed through the parent account. MarMilo Kids, MarMilo Maths, and other child-facing experiences use those parent-managed profiles and do not require children to create independent accounts.

Parents and guardians can contact us to access, correct, or delete information associated with their account and child profiles. If you believe a child has provided personal information without appropriate parental involvement, contact us and we will investigate and remove it where appropriate.

5. Service providers

We use trusted service providers to operate MarMilo. They process information only as needed to provide their services to us:

  • Supabase for authentication and hosted database services.
  • Render for backend hosting and infrastructure.
  • PostHog for product analytics and understanding feature usage.

We may also disclose information when required by law, to protect users or MarMilo, or as part of a business transfer with appropriate safeguards and notice.

AI help in MarMilo Parents

Adults can choose to use AI help for family routines, ideas, and plans. This chat is not offered in MarMilo Kids. AI can make mistakes and does not provide diagnosis, therapy, emergency services, or a substitute for professional advice. If someone may be in immediate danger, contact local emergency services rather than relying on this chat.

When you send a message or request a plan, our backend sends the current conversation to OpenAI together with child profile names, active Behavior counts and limits, and the family's active Incentive count. When you ask for help with a specific Behavior, it also sends that item's details, associated children's names and saved difficulty stages, and recorded progress from the last 30 days. Selecting a plan can additionally include its title, related items, and notes.

Information you type, including personal or sensitive information, is included in the conversation sent to the provider. Avoid including addresses, school names, contact details, or other identifying information that is not needed. We do not automatically send profile photos, birth dates, or diagnoses to the conversation model.

OpenAI also processes item titles to identify similar items, select predefined categories and images, and prepare child-facing audio text. Where generated audio is needed, ElevenLabs receives the text to turn it into speech; prerecorded audio does not require that generation request.

The current chat is held in the app's memory and sent through our backend for processing; we do not save its full transcript in our production database. Plans and notes you choose to save are stored as family content. We separately keep family-linked session identifiers, safety and application states, draft verification hashes, timestamps, and usage counters to enforce safety and usage limits. These records do not contain the full chat, but can indicate that a safety concern was detected. Production diagnostics omit chat and plan text; development and evaluation copies require separate handling.

Our production OpenAI project has Zero Data Retention enabled for the supported API calls used by this service. Under these controls, OpenAI excludes customer content from abuse-monitoring logs and does not store these responses as saved API outputs, subject to the applicable endpoint and capability limitations. OpenAI states that API data is not used for model training unless the customer opts in. These controls apply to OpenAI processing; they do not erase the family content and operational records saved by MarMilo or control ElevenLabs retention. See OpenAI's data controls.

You can use MarMilo without this chat. Review AI suggestions before saving them. A detected safety concern can pause ordinary plan creation and changes in that conversation; it does not automatically notify emergency services or submit a report. For access or deletion requests concerning saved AI-related information, contact us using the details below.

6. Data retention and deletion

We retain account and family data while the account is active and as reasonably necessary to provide MarMilo, meet legal obligations, resolve disputes, and protect the service. Analytics and technical records may be retained for a limited period or in aggregated form.

You can delete your account in MarMilo Parents by opening your profile and choosing “Delete account and data”, then confirming. This action cannot be undone. Once the request is accepted, access is disabled and your account data is removed from our active application database. If another parent remains in the family, shared child profiles and family data remain available to them. If you are the last parent, the family and its child profiles and associated data are also deleted.

The authentication account in Supabase is deleted separately. If that step is delayed, we retry automatically while access remains blocked. We keep a minimal technical deletion record, without conversation or family content, while processing the request and for up to 30 days after it completes.

Deletion from active systems does not immediately erase historical backups or independently retained technical and analytics records; these remain subject to their retention schedules and applicable obligations. If you cannot access the app or need help with deletion, email hello@marmilo.app from the account email. We may need to verify account ownership. Some records may be retained when legally required or necessary for security and fraud prevention.

7. Security and international processing

We use reasonable technical and organizational safeguards, including encrypted network connections, to protect information. No service can guarantee absolute security. Our providers may process information in countries other than your own, subject to their contractual and legal safeguards.

8. Your choices and rights

Depending on where you live, you may have rights to access, correct, delete, restrict, or obtain a copy of your personal information. A parent or guardian may exercise these rights for information associated with their family account. Send requests to hello@marmilo.app.

9. Changes to this policy

We may update this policy as MarMilo evolves. We will update the date above and provide additional notice when a change is significant.

10. Contact

For privacy questions or requests, contact hello@marmilo.app.