Privacy Policy

Last updated: July 2026

Introduction

This Privacy Policy applies to the app AlgoCards: Code Interview Prep (formerly Java4Java; Google Play package name: com.mochacode.app.java4java), listed on Google Play by developer Ryan Hamby, doing business as MochaCode Labs ("we", "our", or "us"). This policy applies equally to the app under either name, as well as to our other applications and services published by Ryan Hamby / MochaCode Labs.

Information We Collect

Information You Provide

  • Account information (email, display name)
  • Progress data and learning preferences
  • User-generated content and feedback

Automatically Collected Information

  • Device information (OS version, device type)
  • Usage analytics (features used, session duration)
  • Crash reports and diagnostic data

How We Use Your Information

  • To provide and improve our services
  • To sync your progress across devices
  • To send important updates and notifications
  • To analyze app performance and fix bugs

Data Storage and Security

Your data is stored securely using Firebase and Google Cloud Platform. We use industry-standard encryption and security measures to protect your information.

Third-Party Services

We use the following third-party services:

  • Firebase: Authentication and data storage
  • Google AdMob: Advertisements (can be removed with premium)
  • Google Analytics: Usage analytics

Your Rights

You have the right to:

  • Access your personal data
  • Request data deletion
  • Opt out of marketing communications
  • Export your learning progress

Children's Privacy

Our services are not directed to children under 13. We do not knowingly collect information from children under 13.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes via email or in-app notification.

Contact Us

If you have questions about this Privacy Policy for AlgoCards: Code Interview Prep (formerly Java4Java), published by Ryan Hamby / MochaCode Labs, please contact us at:

support@mochacodelabs.com