Privacy Policy

Last updated: 11/18/2025

Introduction

Welcome to Chartz ("we," "our," or "us"). We are committed to protecting your privacy and being transparent about how we collect, use, and share your information. This Privacy Policy explains our practices regarding data collected through our web application and mobile app.

Information We Collect

Account Information

When you create an account, we collect:

Email address (if using email authentication)
Username (chosen by you)
Authentication provider information (Google, Apple, Facebook, or Solana wallet)

Wallet Information

If you connect a Solana wallet:

Public wallet address (visible on blockchain)
Wallet connection preferences
We never access your private keys or seed phrases

Game Data

We collect gameplay information:

Game scores and predictions
Round history and statistics
Leaderboard rankings
Game mode preferences

Usage Information

We automatically collect:

Device type and operating system
Browser type and version
IP address (for security purposes)
Session duration and interaction patterns

How We Use Your Information

We use your information to:

Provide and maintain the Chartz game experience
Authenticate your account and maintain security
Display leaderboards and rankings
Track your game statistics and progress
Improve our app and develop new features
Communicate with you about updates or issues
Prevent fraud and abuse

Third-Party Services

We use the following third-party services:

Supabase

Authentication, database, and backend services. View their privacy policy at supabase.com/privacy

Vercel

Hosting and deployment. View their privacy policy at vercel.com/legal/privacy-policy

Solana Blockchain

Wallet authentication (wallet addresses are publicly visible on the blockchain)

Data Sharing and Disclosure

We do not sell your personal information. We may share data:

Publicly on leaderboards (username and scores only)
With service providers who help us operate the app
When required by law or to protect our rights
In connection with a business transfer or merger

Data Security

We implement appropriate security measures to protect your data:

Encrypted data transmission (HTTPS/TLS)
Secure authentication with industry-standard providers
Regular security updates and monitoring
Access controls and data minimization

However, no method of transmission over the internet is 100% secure. While we strive to protect your data, we cannot guarantee absolute security.

Your Rights

You have the right to:

Access your personal data
Correct inaccurate data
Request deletion of your account and data
Object to processing of your data
Export your data in a portable format
Withdraw consent at any time

To exercise these rights, please contact us at the email address provided below.

Data Retention

We retain your data as long as your account is active or as needed to provide services. If you delete your account, we will delete or anonymize your personal data within 30 days, except where we are required to retain it for legal purposes.

Children's Privacy

Chartz is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If you believe we have collected data from a child, please contact us immediately.

International Users

Your data may be transferred to and processed in countries other than your own. By using Chartz, you consent to the transfer of your data to these countries, which may have different data protection laws.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes by posting a notice in the app or sending you an email. Your continued use of Chartz after changes are posted constitutes acceptance of the updated policy.

Contact Us

If you have questions or concerns about this Privacy Policy or our data practices, please contact us at:

Email:

support@chartz.xyz

Website:

https://www.chartz.xyz

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