Privacy Policy

Short version: we collect zero personal information. No accounts, no cookies, no third-party trackers. Your stats live in your browser only.

What we don't collect

• No name, email, phone number, or any other personal identifier.
• No accounts — we don't have a signup system.
• No cookies — we use no first-party or third-party cookies.
• No tracking pixels, no fingerprinting, no behavioral profiling.
• No advertising — currently none. If we ever add ads (Month 6+), we'll update this policy.

What lives in your browser

To make games playable across visits, we store the following in your browser's localStorage:

• Per-game stats (total plays, wins, current streak, max streak, win-distribution).
• Per-game skill score (0–100) and tier (Bronze through Master).
• Your settings (theme, sound on/off, haptic on/off, locked tier, etc.).
• In-progress game state (so you can resume mid-puzzle).
• An error log (last 50 errors, used by the "Report a bug" page — never auto-transmitted).

This data never leaves your browser unless you explicitly export it via the QR-code backup feature in Settings.

What we collect at the server level

• Standard server access logs from our hosting provider (IONOS) and CDN (Cloudflare): IP address, user-agent, requested URL, timestamp. Retained 30 days for security and abuse detection.
• Cloudflare Web Analytics: aggregate, cookie-free traffic counters. No personal info collected. Cloudflare's privacy notice.

That's everything. No third-party SDK, no Sentry, no DeepL, no Google Analytics, no Facebook pixel.

Your rights

Because we collect no personal information, requests under GDPR / CCPA / LGPD / DPDPA / KVKK / etc. resolve trivially:

• Right to know: we hold no personal data about you.
• Right to access: nothing to access.
• Right to delete: nothing to delete (your localStorage data is yours — clear it via your browser).
• Right to portability: use the QR-code export in Settings to move your stats between devices.

Questions? [email protected].

Children

The site is general-audience and child-safe. We do not knowingly collect personal information from anyone, including children under 13 (COPPA in the US) or 16 (GDPR-K in EU). If we ever market specifically to kids, we will add explicit COPPA-compliant disclosures.

Changes to this policy

If we ever start collecting personal information (e.g., if we add optional accounts in v2), we will:

• Update this policy.
• Show a clear in-app notice before collecting anything.
• Make any new collection strictly opt-in.

Last updated: 2026-04-29 · Version 1.0