Privacy Policy
Last updated: 18 September 2026
This Privacy Policy explains how Alex Marin Design Ltd ("we", "us", "our") collects and uses your personal data when you use SPARC (the "App"). We are the data controller for the personal data described here.
- Company: Alex Marin Design Ltd, registered in England and Wales, company number 13175379.
- Registered office: 4th Floor, 18 St. Cross Street, London EC1N 8UN.
- Contact / data enquiries: hello@getsparc.app.
1. Who this policy is for
The App is intended for adults (18+) who organise family life. Adults create a family space and may add other adults and children as family members. Children do not create their own accounts. If you add a child or another person's details, you confirm you have the authority to do so.
2. The data we collect
You give us:
- Account data: your email address, and an authentication identifier if you sign in with Apple or Google.
- Family & profile data: names, roles (adult/child), and optionally dates of birth, gender, and avatar/photo for each family member, including children.
- Your content: events, tasks, lists, and "moments" (notes and photos you upload).
- Support data: anything you send us when you contact us.
We collect automatically:
- Device & usage data: app version, device type, operating system, and basic diagnostics needed to run and troubleshoot the App.
- Product-analytics data: pseudonymous usage events (which screens you view, which features you use, and how far you get through setup), tied to a random identifier, so we can understand how the App is used and where people get stuck. This never includes your family members' names, photos, notes, or other content, and we do not record your screen.
From third parties:
- Sign-in providers (Apple, Google) confirm your identity and share a limited identifier and, where you allow it, your email.
- App stores (Apple, Google) process any subscription and tell us your subscription status. We do not receive your card or payment details.
3. Children's data
Some data you enter is about children. We only hold it to provide the family-organisation features you ask for. We do not use children's data for marketing, profiling, or advertising, and we do not knowingly let children create their own accounts. As the adult who added a child, you are responsible for that child's information and for deciding what to share within your family space. You can edit or delete it at any time. Our product analytics measures only the account holder's use of the App; it never captures children's names, photos, or content, and children are never separately identified or profiled.
4. How we use your data, and our lawful bases
| Purpose | Lawful basis (UK GDPR) |
|---|---|
| Create and run your account and family space | Performance of a contract |
| Store and display your events, tasks, lists and moments to your family | Performance of a contract |
| Process subscriptions and confirm entitlements | Performance of a contract |
| Keep the App secure and diagnose problems | Legitimate interests |
| Understand how the App is used and improve it (pseudonymous product analytics) | Legitimate interests (you can object, see "Your rights") |
| Respond to your support requests | Legitimate interests |
| Sync events to your device / Google calendar (optional) | Consent |
| Send service emails (e.g. sign-in codes) | Performance of a contract |
We do not sell your personal data, and we do not use it for third-party advertising.
5. Who we share it with (processors & sub-processors)
We share data only with service providers that process it on our behalf under contract, and only as needed to run the App:
- Supabase: database, authentication and file storage (hosting your account, family data and uploaded photos). Region: the United Kingdom.
- Apple and Google: sign-in and subscription/payment processing.
- Expo: app delivery and over-the-air updates.
- Resend: sending our transactional email (sign-in codes, family invitations, and the welcome message). Processes the recipient's email address and the name shown in the message.
- PostHog: product analytics (understanding how the App is used). Region: the European Union. Configured so it does not receive your content, and with session recording switched off.
We may also disclose data where required by law, or to protect our rights, users, or the public.
6. International transfers
Your account and family data are stored in the United Kingdom, the region of our Supabase project. Some providers we rely on, including Apple, Google, Expo and Resend, may process limited data outside the UK. Where they do, we rely on appropriate safeguards such as the UK International Data Transfer Agreement / Addendum or an adequacy decision. Our analytics provider (PostHog) stores data in the European Union, which is covered by a UK adequacy decision.
7. How long we keep it
We keep your data while your account is active. When you delete your account (see below) we delete your personal data and uploaded photos, except where we must retain limited records to meet legal obligations (e.g. tax, or records of a transaction). Backups are overwritten on our providers' normal cycles.
8. Deleting your data
You can delete your account and its data from within the App (Settings → Security → Delete account). Deleting the family space removes its events, tasks, lists, moments and uploaded photos. You can also email us at hello@getsparc.app to exercise any of your rights.
9. Security
We use industry-standard measures including encrypted connections, access controls, and row-level security so a family's data is only visible to that family. No system is perfectly secure, but we work to protect your data and to notify you and the ICO of any breach where legally required.
10. Your rights
Under UK GDPR you have the right to: access your data; correct it; delete it; restrict or object to processing; data portability; and to withdraw consent at any time. To exercise these, contact hello@getsparc.app. You also have the right to complain to the Information Commissioner's Office (ICO) at ico.org.uk or 0303 123 1113, though we'd appreciate the chance to help first.
11. On your device
The App stores small amounts of data on your device (e.g. your sign-in session and appearance preference) so it works between launches. We do not use advertising cookies or third-party tracking.
The App asks your device's permission for the following. You can refuse any of them, or withdraw them later in your device settings, and the rest of the App keeps working.
- Photos — to let you choose a picture for a family member or a moment. We only receive the picture you pick.
- Adding to your photo library — only when you ask us to save a moment's photo back to your device.
- Notifications — to show reminders for events and tasks. These are scheduled on your device; the reminder and its text never leave your phone, and we do not send push messages to you.
- Calendar — only if you turn on calendar sync, to read your calendars so you can pick one and to write your family's events into it.
12. Changes to this policy
We may update this policy. We will change the "Last updated" date and, for significant changes, notify you in the App.
13. Contact
Alex Marin Design Ltd · 4th Floor, 18 St. Cross Street, London EC1N 8UN · hello@getsparc.app