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Privacy Policy

Our commitment to protecting your privacy

2025/11/24

Introduction

At Save Data Calculator, we are committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard information when you use our free Chaos Zero Nightmare deck building tool.

Effective Date: November 24, 2025

By using our services, you agree to the collection and use of information in accordance with this policy.

1. Information We Collect

We Do Not Collect Personal Information

Save Data Calculator is designed to work entirely in your browser without requiring user accounts, registration, or personal data collection.

Anonymous Analytics

We use anonymous analytics (via privacy-focused analytics platforms) to understand how users interact with our tool. This includes:

  • Page views and navigation patterns
  • Session duration and bounce rates
  • General usage patterns and feature interactions
  • Browser type and device information (anonymized)
  • Geographic region (country/city level only)

No personally identifiable information is collected through these analytics.

Local Browser Data

All your data is stored locally in your browser:

  • Deck builds and configurations
  • Card selections and favorites
  • Save data calculations
  • User preferences and settings

We do not store this information on our servers. Your deck data remains private and on your device.

2. How We Use Information

The anonymous analytics we collect are used solely to:

  • Improve User Experience: Enhance the functionality and usability of the Save Data Calculator
  • Understand Feature Value: Identify which features are most valuable to our community
  • Fix Technical Issues: Identify and resolve bugs and technical problems
  • Optimize Performance: Monitor site performance and optimize loading times
  • Guide Development: Make informed decisions about new features and improvements

We never use this data for advertising, tracking, or any other purpose beyond improving our service.

3. Data Storage and Security

Browser-Only Storage

All deck builds and calculations are stored locally in your browser's local storage and session storage:

  • Your deck configurations remain completely private
  • No user data is transmitted to our servers
  • You maintain full control over your deck building information
  • You can clear your data at any time through your browser settings

No Server-Side User Data

We do not maintain databases of user accounts, personal information, or deck builds on our servers.

4. Cookies and Tracking

We use minimal cookies necessary for:

Essential Cookies

  • Session Management: Maintaining your active session
  • Language Preference: Remembering your selected language (English, 中文, 日本語, 한국어)
  • Preference Storage: Saving your tool settings and preferences

Analytics Cookies

  • Anonymous Analytics: Privacy-focused analytics that do not collect personal information
  • Performance Monitoring: Tracking page load times and technical performance

We do not use:

  • Advertising cookies
  • Third-party tracking cookies
  • Social media tracking pixels
  • Cross-site tracking technologies

You can disable cookies in your browser settings, though this may affect some functionality.

5. Third-Party Services

We use the following trusted third-party services:

Analytics

  • Privacy-Focused Analytics Platform: Anonymous usage analytics that respect your privacy
  • No personal data collection or cross-site tracking

Content Delivery

  • Tailwind CDN: For efficient delivery of styling resources
  • Google Fonts: For typography and font rendering

Hosting

  • Cloud Hosting Provider: For serving the application (no user data stored)

These services have their own privacy policies, which we encourage you to review. We carefully select partners who prioritize user privacy.

6. Deck Sharing

Encoded Deck URLs

When you share a deck:

  • Deck data is encoded in the URL itself
  • The URL contains card selections and configurations only
  • No personal information is included in shared URLs
  • Anyone with the URL can view and import the deck
  • We do not track who views or uses your shared decks

No Account Required

You can create, save, share, and import decks without creating an account or providing any personal information.

7. Your Rights and Control

Since we do not collect personal information, there is no personal data to access, modify, or delete. However, you can:

Full Control Over Your Data

  • Clear Local Storage: Remove all deck configurations by clearing your browser's local storage
  • Disable Cookies: Block cookies through your browser settings
  • Block Analytics: Use browser extensions or privacy tools to block analytics
  • Export Decks: Save your deck builds locally or share them via encoded URLs

Privacy Tools

You can enhance your privacy by:

  • Using privacy-focused browsers (Firefox, Brave, etc.)
  • Installing ad blockers and tracker blockers
  • Enabling "Do Not Track" in your browser
  • Using VPN services if desired

8. Children's Privacy

Our service does not collect personal information from anyone, including children. The Save Data Calculator can be used safely by users of all ages without registration or data collection.

If you have concerns about children's privacy, please contact us.

9. International Users

Save Data Calculator is accessible worldwide. Since we do not collect personal data:

  • No personal data transfers occur
  • No data protection concerns regarding international transfers
  • The tool works the same way for users in all countries

We strive to comply with privacy laws worldwide, including GDPR, CCPA, and other regional regulations.

10. Changes to This Privacy Policy

We may update this Privacy Policy periodically to reflect:

  • Changes in our practices
  • New features or functionality
  • Legal or regulatory requirements
  • Improvements to privacy protection

We will notify you of significant changes by:

  • Posting the updated policy on this page
  • Updating the "Effective Date" at the top
  • Displaying a notice on the site (for material changes)

We encourage you to review this policy periodically.

11. Security

While we do not collect or store your personal data on our servers, we still implement security best practices:

  • HTTPS Encryption: All communications with our site are encrypted
  • Secure Hosting: Our infrastructure is hosted on secure, reputable platforms
  • Regular Updates: We keep our dependencies and systems updated
  • Security Monitoring: We monitor for security vulnerabilities
  • No Data Breaches: Since we don't store user data, there's nothing to breach

12. Compliance

We strive to comply with applicable privacy laws and regulations, including:

  • GDPR (General Data Protection Regulation) for EU users
  • CCPA (California Consumer Privacy Act) for California residents
  • PIPEDA (Personal Information Protection and Electronic Documents Act) for Canadian users
  • Other applicable regional privacy laws worldwide

Our privacy-by-design approach means we collect no personal data, exceeding the requirements of most privacy laws.

13. Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy, please contact us:

For privacy-related inquiries, please include "Privacy Policy" in your subject line.

Save Data Calculator is an independent, community-focused tool for Chaos Zero Nightmare players. We are committed to protecting your privacy while providing powerful deck building and save data calculation tools.

Note: Save Data Calculator is not affiliated with the official Chaos Zero Nightmare game or its developers. This is a fan-made tool created for the CZN community.

Thank you for trusting us and using Save Data Calculator!