Privacy Policy

Effective Date: December 2025

1. Data Collection

ZeroDay Hero ("we," "our," or "the app") does not collect personal identifiers such as names, email addresses, or contact information. We use browser localStorage to save your mission progress, XP points, streak data, and game statistics locally on your device. This data never leaves your device and is not transmitted to any external servers.

2. Third-Party Advertising

We use Google AdMob to serve advertisements within the app. Google AdMob is a third-party advertising service that may collect and use information about your device and usage patterns to serve personalized ads.

Important Disclosure: Third parties, including Google, use cookies to serve ads based on a user's prior visits to your website or other websites. Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to our site and/or other sites on the Internet.

Users may opt out of personalized advertising by visiting Google's Ads Settings.

3. Cookies and Device Identifiers

Google AdMob may use cookies, device identifiers (such as Advertising ID on Android or IDFA on iOS), and similar technologies to collect information about your device, including:

• Device type and operating system
• Unique device identifiers
• IP address
• App usage and interaction data
• Ad interaction and performance data

4. Data Retention and Storage

All gameplay data (XP, levels, streaks, bandwidth) is stored exclusively in your browser's localStorage. This means your data remains on your device and is never uploaded to our servers. You maintain complete control over this data.

5. Your Rights and Choices

Since your gameplay data is stored locally on your device, you have full control over it:

• You can reset all progress and data by using the "Wipe Data" option in the app settings
• You can clear all data by clearing your browser cache and localStorage
• You can opt out of personalized ads through your device settings or Google's Ad Settings

6. Children's Privacy

ZeroDay Hero is designed for educational purposes and does not knowingly collect personal information from children under 13. If you believe we have inadvertently collected such information, please contact us immediately.

7. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify users of any material changes by updating the "Effective Date" at the top of this policy. Your continued use of the app after any changes indicates your acceptance of the updated policy.

8. Contact Information

For questions, concerns, or requests regarding this Privacy Policy or your data, please contact the developer through the official feedback portal available in the app's Settings menu.