Privacy Policy

Effective Date: February 17, 2025 | Last Updated: February 17, 2026

Welcome to Happy Knight. We are committed to providing a fun and safe chess experience for players of all ages. This Privacy Policy explains our practices regarding the collection, use, and disclosure of information when you use our mobile application.

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Core Principles

1. No Data Collection

Happy Knight does not collect, store, or share any personal information.

No account creation required.
No collection of names, emails, or location.
No third-party tracking software.

2. Local Storage

All customization happens on your device.

Your player name and selected images stay local. These files are never uploaded to a server and never leave your device.

3. Game Progress

All puzzle progress and settings are stored locally. Note: Uninstalling the app will delete this data permanently.

Technical Details

Stockfish Engine

We use the Stockfish Chess Engine, which runs as a native library entirely on your device. It requires no internet connection.

Permissions

We request access to your photo gallery only when you choose to "Upload Wallpaper." We only see the specific file you select.

Compliance & Safety

Children’s Privacy (COPPA) Compliant

Because we do not collect any personally identifiable information, we are in full compliance with the Children’s Online Privacy Protection Act. We include no behavioral advertising.