Privacy Policy

Last updated: April 2026

Introduction

Hoppo is a browser-based interactive game for children ages 5–8. This Privacy Policy explains what information we collect (and what we do not), how we use it, and how we protect the privacy of the children and families who use our service. We are committed to full compliance with applicable privacy laws, including the Children's Online Privacy Protection Act (COPPA).

Information We Do Not Collect

We do not collect personal information from children or from anyone using Hoppo. Specifically:

• No accounts or user registration are required.
• We do not ask children for their name, age, email address, or any other personally identifiable information (PII).
• We do not collect contact information from minors at any point.
• We do not use behavioral advertising or build profiles of individual users.
• We do not use tracking cookies or third-party tracking pixels.

Camera and Video Data

Hoppo uses the device camera to track body and hand movements for gameplay. All video processing is performed entirely on-device using MediaPipe machine learning models that run directly in the browser.

• Video frames are never transmitted, stored, or uploaded to any server.
• No images or video ever leave the device.
• No recordings are made at any time.
• Camera access is controlled by the browser and can be revoked at any time through browser or device settings.

Because all processing is local, a parent or guardian's granting of camera permission within the browser is the only action required. We receive nothing from that permission grant.

Local Storage

Game progress, settings, and preferences are stored in the browser's localStorage on the user's device only. This data never leaves the device and is never transmitted to any server. Users can clear it at any time through their browser settings (typically under Settings → Privacy → Clear browsing data or Site data).

Error Logging

If the application encounters a technical error, anonymous error information (error messages and timestamps) may be stored locally in localStorage to help with debugging. This information never leaves the device and contains no personal information.

Payment Information

Optional paid features are processed by Lemon Squeezy. All payment transactions occur on Lemon Squeezy's platform and are governed by their Privacy Policy. We never receive, process, or store credit card numbers or other payment credentials.

Teacher Verification

Teachers may optionally provide a .edu email address to verify eligibility for free educator access. If provided, this email address is stored only in the browser's localStorage on the teacher's device. It is never transmitted to our servers or shared with third parties.

Analytics

We currently do not collect any analytics data. No usage statistics, session durations, or behavioral data are gathered or transmitted.

Children's Privacy (COPPA)

We comply with the Children's Online Privacy Protection Act (COPPA). Hoppo is designed for children ages 5–8 and is intended to be used under parental or guardian supervision.

• We do not knowingly collect personally identifiable information (PII) from children under 13.
• No registration, account creation, or personal information is required to use the application.
• Camera access requires the granting of browser permission, which should be done by a parent or guardian on behalf of a child.
• If you believe we have inadvertently collected personal information from a child, please contact us immediately at hello@playhoppo.com and we will promptly delete it.

Data Security

All data associated with Hoppo remains on the user's device. Because we operate no servers that store personal data, there are no servers to breach, no databases to expose, and no passwords to steal. The security of locally stored data is governed by the browser's built-in sandboxing and origin isolation.

Changes to This Policy

We may update this Privacy Policy from time to time. When we do, we will revise the "Last updated" date at the top of this page. We encourage you to review this policy periodically. Continued use of Hoppo after changes are posted constitutes your acceptance of the revised policy.

Contact

If you have questions or concerns about this Privacy Policy, please contact us at:
hello@playhoppo.com