Privacy Policy

Last updated: January 24, 2026

TL;DR

  • We do NOT collect personal information (no emails, names, or accounts required)
  • We use anonymous analytics to improve the apps
  • Your learning progress is stored locally on your device
  • We do not sell or share data with third parties

What We Collect

Anonymous Usage Data

We collect anonymous usage data to understand how our apps are used and to improve them. This includes:

  • Which apps are opened
  • How long sessions last (approximately)
  • Which features are used
  • General interaction patterns

This data is associated with a randomly generated session ID stored in your browser. The session ID is rotated every 30 days and cannot be used to identify you personally.

What We Do NOT Collect

  • Names or email addresses
  • IP addresses (beyond what is needed for basic web functionality)
  • Location data
  • Device fingerprints
  • Any personally identifiable information

Local Storage

Your learning progress, favorites, and preferences are stored locally in your browser using localStorage. This data never leaves your device unless you explicitly sync it (a feature we may add in the future).

Third-Party Services

We use the following third-party services:

  • Cloudflare - For hosting and basic web analytics (page views). See Cloudflare's privacy policy.

Cookies

We do not use cookies for tracking. The only data stored in your browser is:

  • Anonymous session ID (localStorage)
  • Your learning progress (localStorage)
  • Your preferences like favorites (localStorage)

Data Retention

Anonymous analytics data is retained for up to 12 months for trend analysis. Local data on your device persists until you clear your browser data.

Your Rights

Since we do not collect personal information, there is no personal data for us to delete or export. You can clear all local data by clearing your browser's localStorage.

Changes to This Policy

We may update this privacy policy from time to time. We will notify users of any significant changes by updating the date at the top of this page.

Contact

If you have questions about this privacy policy, contact us at [email protected].