Privacy Policy

Last updated: 12 July 2026

Adhithi Ltd ("we", "us") is the data controller for this service. We build for children, so we follow the UK GDPR and the ICO's Children's Code: we collect the minimum we need, we never show ads, and we never sell personal data. Contact us about privacy at [email protected].

1. What we collect

About parentsName, email address, password (stored hashed). If you sign in with Google, the name and email Google shares with us.
About childrenFirst name or display name, year group, exam year, chosen avatar and a sign-in PIN (stored hashed). Child profiles have no email address and no password and are only ever created by a parent.
Learning activityAnswers given, scores, time taken, practice streaks, badges and mastery levels — the data that powers progress tracking.
TechnicalDevice type (web/app) and standard server logs (IP address, timestamps) kept for security.

2. What we use it for

Aggregate statistics (for example "children in Year 5 average 64% on this topic") are only shown when the group is large enough that no individual child could be identified (at least 20 children).

3. Children's data

4. Who we share data with

Only the suppliers that run the service for us: our UK/EU hosting provider and our email delivery provider (to send verification and reset emails to parents). They process data under contract, on our instructions only. We do not sell or rent personal data to anyone. We would only disclose data where the law requires it.

5. How long we keep it

6. Your rights

You (and your children, exercised through you) have the right to:

You can also complain to the Information Commissioner's Office at ico.org.uk, though we'd appreciate the chance to help first.

7. Security

All traffic is encrypted (HTTPS). Passwords and PINs are stored hashed, never in plain text. Answers are marked on our servers, and children's sessions use tokens that can only see that child's own data.

8. Changes

If we change this policy in any significant way we will email parents before the change takes effect. The "last updated" date above always shows the current version.