Privacy Policy

Last Updated: February 22, 2026

1. Introduction

Dark Matter Jiu-Jitsu ("Company", "we", "our", or "us") operates the Dark Matter Jiu-Jitsu mobile application (the "Service"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our Service, including what choices you have with respect to your information.

We are committed to protecting your privacy and ensuring you have a positive experience on our platform. If you have additional questions or require more information about our Privacy Policy, do not hesitate to contact us at the email address listed at the end of this document.

2. Information We Collect

2.1 Personal Information You Provide

We collect information you voluntarily provide to us, including:

2.2 Automatically Collected Information

When you use our Service, we automatically collect certain information:

2.3 Information from Third Parties

We use Google Firebase for cloud storage and analytics. Firebase may collect additional data as described in Google's Privacy Policy.

3. How We Use Your Information

We use the information we collect to:

4. Data Retention

We retain your personal information for different periods depending on the type of data:

5. Third-Party Services

5.1 Google Firebase

Our Service uses Google Firebase for cloud data storage, authentication, and analytics. Firebase may collect and process data on Google's servers. For more information about how Google processes data, please visit Google's Privacy Policy.

5.2 Analytics

We use Firebase Analytics to understand how users interact with our Service. This helps us improve features and user experience. Analytics data is aggregated and does not directly identify you.

6. Children's Privacy (COPPA Compliance)

Age Restriction: Our Service is intended for users aged 13 and older. We do not knowingly collect personal information from children under 13 years old.

6.1 Age Verification

We collect your birthday during registration to verify you are at least 13 years old. We use this information solely for age verification and do not use it for any other purpose without your consent.

6.2 Parental Consent (Ages 13-17)

For users aged 13 to 17, we require parental consent before activating the account. Parents/guardians will receive a verification email and must approve their child's use of the Service.

6.3 Parental Rights

If your child is using our Service, you have the right to:

To exercise these rights, please contact us with "PARENTAL REQUEST" in the subject line and include:

7. Your Privacy Rights

7.1 Access Your Data

You have the right to request what personal information we have collected about you. Send a request to the email address below with "DATA REQUEST" in the subject line.

7.2 Delete Your Data

You can request deletion of your account and associated data at any time. Some data may be retained for legal or operational reasons. Send a request with "DELETION REQUEST" in the subject line.

7.3 Correct Your Data

You can update or correct your personal information through your account settings. If you need help, contact us at the email address below.

7.4 Opt-Out of Communications

You can opt-out of push notifications and marketing communications in your account settings. This will not affect important security or account notifications.

8. Data Security

We implement appropriate technical and organizational measures to protect your personal information against unauthorized access, alteration, disclosure, or destruction. These measures include:

However, no method of transmission over the Internet or electronic storage is 100% secure. While we strive to use commercially acceptable means to protect your data, we cannot guarantee its absolute security.

9. International Data Transfers

Your information may be transferred to, stored in, and processed in countries other than your country of residence, including the United States. These countries may not have the same data protection laws as your home country. By using our Service, you consent to the transfer of your information to countries outside your country of residence.

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our practices, technology, legal requirements, and other factors. We will notify you of material changes by posting the new Privacy Policy on this page and updating the "Last Updated" date. Your continued use of our Service after changes means you accept the updated policy.

11. Contact Us

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

Email: support@darkmatterjj.com

Subject Line Suggestions:

We will respond to all inquiries within 30 days.