Privacy Policy – Helmi

This privacy policy covers the Helmi mobile app (iOS and Android) and its web pages.

Updated 12 November 2026.

1. Summary and children's privacy

Helmi is a multiplication learning game designed for children and families. The app does not collect, transmit, or share any personal data from children or adults. The app is used without an account and without an internet connection, and it contains no ads, third-party analytics, cookies, tracking, or social media SDKs.

2. Controller

Cavalier Venues Oy (Cavalier Code), Business ID 3649639-4, VAT ID FI36496394, domicile Helsinki, Finland. Privacy enquiries: tietosuoja@ccode.fi.

3. Data stored on your device

Only on your own device: The nickname and animal icon chosen for a local player profile, selected multiplication tables, stars earned, unlocked rewards, per-fact practice progress, and sound preference are stored solely in local storage on your own phone or tablet. Cavalier Venues Oy has no backend server, and the app makes no network connections to any server. The Android app requests no internet permission and no other device permissions. On iPhone and iPad, local app storage may be included in device backups managed by the parent or guardian according to the device's settings; on Android, cloud backup is disabled.

App stores: When the app is downloaded from the App Store or Google Play, Apple or Google processes account details related to the download and any Family Sharing under their own privacy policies. Cavalier Venues Oy receives no personal or billing details about the user or child.

4. Retention and deletion

Because all game data is stored only on your own device, you can reset a player's progress on the Skills tab in the app or delete all data immediately by uninstalling the app from the device.

5. Website and parent or guardian enquiries

This website is intended for parents and guardians. The website uses no cookies or analytics and is hosted by our processor Vercel Inc. Logs containing technical data are kept for at most 30 days. If a parent or guardian emails us at support@ccode.fi or tietosuoja@ccode.fi, we process the sender's name, email address, and message in Google Workspace to reply (legitimate interest, GDPR Article 6(1)(f)). Please do not include children's personal data in support emails. Messages are kept for up to 12 months from the last message. Vercel and Google may process data outside the EU; transfers rely on the EU–US Data Privacy Framework or standard contractual clauses approved by the European Commission.

6. Your rights and changes

You have the right to request access to enquiries you have sent us, rectification or erasure, and to object to processing by contacting tietosuoja@ccode.fi. You may also lodge a complaint with the Office of the Data Protection Ombudsman in Finland (tietosuoja.fi). When this policy changes, the date at the top of the page is updated.