Privacy Policy for Cyrex

Effective Date: January 15, 2026
Last Updated: January 15, 2026

Introduction

Cyrex ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application Cyrex - Crypto Paper Trading (the "App").

Please read this privacy policy carefully. By using the App, you agree to the collection and use of information in accordance with this policy.

1. Information We Collect

1.1 Information We DO NOT Collect

Cyrex is designed with privacy in mind. We do not collect, store, or transmit any personally identifiable information (PII) from our users. Specifically, we do not collect:

• Names

• Email addresses

• Phone numbers

• Physical addresses

• Payment information

• User accounts or login credentials

1.2 Information Stored Locally on Your Device

All app data is stored locally on your device using Android's SharedPreferences and is never transmitted to our servers. This includes:

• Nickname: Your chosen username (stored only on your device)

• Avatar selection: Your selected profile icon

• Portfolio data: Virtual trading balance, holdings, and transaction history

• App preferences: Settings and onboarding completion status

Important: This data never leaves your device and is deleted if you uninstall the app.

1.3 Information Collected by Third-Party Services

While we don't collect personal information, third-party services integrated into the App may collect certain data:

Google AdMob (Advertising)

• Purpose: To display advertisements

• Data Collected: Device identifiers (Advertising ID), IP address, device type, operating system, and ad interaction data

• Privacy Policy: Google Privacy Policy

• Ad Personalization: You can control ad personalization through your device settings (Android: Settings > Google > Ads)

Binance Public API

• Purpose: To fetch real-time cryptocurrency prices

• Data Collected: None. We only make anonymous requests to public market data endpoints

• No account required: We do not use any Binance user accounts or authentication

2. How We Use Information

Since we do not collect personal information, we cannot use it. The locally stored data mentioned in Section 1.2 is used solely to:

• Maintain your portfolio and trading simulation

• Remember your preferences across app sessions

• Track your virtual trading performance

3. Third-Party Advertising

Google AdMob

We use Google AdMob to serve advertisements within the App. AdMob may use cookies and similar technologies to:

• Deliver relevant ads based on your interests

• Measure ad performance

• Prevent fraud

Your Choices:

• You can opt out of personalized ads in your Android device settings: Settings > Google > Ads > Opt out of Ads Personalization

• Ads will still be shown, but they will be less relevant to you

Data Sharing: We do not share any data with advertisers. AdMob independently collects device information as described in their privacy policy.

4. Data Security

We take data security seriously:

• Local Storage: All your data is stored locally using Android's secure storage mechanisms

• No Servers: We do not operate servers that store or process user data

• No Transmission: Your portfolio data never leaves your device

• Encryption: Android automatically encrypts app data on devices running Android 6.0 and above

5. Children's Privacy

Cyrex does not knowingly collect personal information from children under 13 years of age. The App is designed for educational purposes and does not require any personal information to use.

If you are a parent or guardian and believe your child has provided us with personal information, please contact us at 

gamearcade199@gmail.com, and we will take steps to delete such information.

6. Data Retention

• Local Data: Data is retained on your device until you uninstall the app or clear app data

• No Cloud Storage: We do not retain any data on our servers as we do not collect any

7. Your Rights

As we do not collect or store personal data on our servers, traditional data rights (access, deletion, portability) are inherently protected:

• Access: All your data is already accessible within the app

• Deletion: Uninstall the app or clear app data in Android settings

• Portability: Your data exists only on your device

• Control: You have complete control over your local data

Ad Personalization Control:
You can control ad personalization through your device's Google settings.

8. Third-Party Links

The App does not contain links to third-party websites or services, except for:

• Privacy Policy links (Google AdMob)

• Support email contact

We are not responsible for the privacy practices of these third parties.

9. International Data Transfers

Since we do not collect or store user data on servers, there are no international data transfers.

Google AdMob may transfer data internationally as part of their service. Please refer to Google's Privacy Policy for more information.

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. Changes will be effective immediately upon posting the updated policy within the App and on this page.

We will notify users of significant changes through:

• An in-app notification

• Updating the "Last Updated" date at the top of this policy

Your continued use of the App after changes are posted constitutes acceptance of the updated policy.

11. Compliance

This Privacy Policy complies with:

• Google Play Developer Program Policies

• Children's Online Privacy Protection Act (COPPA)

• General Data Protection Regulation (GDPR) principles

• California Consumer Privacy Act (CCPA) where applicable

12. Contact Us

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

Email: 

gamearcade199@gmail.com

Support: Via in-app "Contact Support" button

Response Time: We aim to respond to all inquiries within 48 hours.

13. Permissions Explained

The App requests the following Android permissions:

INTERNET

Purpose: Required to:

• Fetch real-time cryptocurrency prices from Binance API

• Display advertisements via Google AdMob

How it's used: Only for fetching public market data and serving ads. No personal data is transmitted.

Summary

What We Collect: Nothing personally identifiable
Where Data is Stored: Only on your device
Third Parties: Google AdMob (ads), Binance (price data)
Your Control: Complete control over local data
Questions: 

gamearcade199@gmail.com

Thank you for using Cyrex - Crypto Paper Trading!

This policy ensures transparency and protects your privacy while you learn crypto trading risk-free.