Privacy — demonstration release

Updated October 20, 2026. This release runs practice checks entirely in your browser. We do not operate an account system and do not receive or persist your answers or student names. Refreshing the page removes the current result. Your hosting service may process standard access logs including IP addresses; configure retention appropriately before public deployment.

There are no analytics SDKs, cookies for account recognition, advertising pixels, AI chats, or subscription payments in this release. Do not enter a child's personal details. This notice must be reviewed and replaced with deployment-specific disclosures before operating as a public commercial children's education service.

Contact: configure your official support email before launch; no contact address is provided in the demonstration.