Privacy Policy

Last updated: March 19, 2026

What is Mundo?

Mundo is a language learning app that helps you learn by reading real news articles. This policy explains what data we collect, how we use it, and your rights.

Data We Collect

Account information

When you sign in with Google, we receive your name, email address, and profile photo from your Google account. If you use the app as a guest, we create an anonymous account with no personal information attached.

Learning data

We store your reading history, vocabulary bank, quiz scores, streaks, gem balance, proficiency level, and language preferences. This data powers your personalized learning experience.

Usage data

We collect basic usage information such as articles read, time spent reading, and feature interactions to improve the app experience.

How We Use Your Data

  • Provide and personalize your learning experience
  • Track your progress, streaks, and vocabulary mastery
  • Generate AI-powered translations and explanations
  • Process premium subscriptions
  • Send push notifications you have opted into (streak reminders, review prompts)

Third-Party Services

Mundo uses the following third-party services:

  • Google Firebase — authentication, database, hosting, and cloud functions
  • Google Gemini AI — article translation, text analysis, and language explanations
  • Google Cloud Translation API — quick word translations
  • Stripe — payment processing for premium subscriptions (we never store your card details)
  • Firebase Cloud Messaging — push notifications

Each service processes data according to their own privacy policies.

Cookies & Local Storage

Mundo uses browser local storage to save your authentication session, app preferences (e.g., dismiss states, PWA install prompt), and offline data. We do not use third-party tracking cookies or advertising cookies.

Data Retention

Your learning data is retained as long as your account is active. Translation cache entries expire after 90 days. If you delete your account, your personal data will be removed from our systems.

Your Rights

You can request access to, correction of, or deletion of your personal data at any time by contacting us. You can also sign out and stop using the app at any time.

Children

Mundo is not directed at children under 13. We do not knowingly collect personal information from children under 13.

Changes to This Policy

We may update this policy from time to time. Changes will be posted on this page with an updated date.

Contact

If you have questions about this privacy policy or your data, contact us at privacy@mundo.today