Brain Challenge — Privacy Policy
Last updated: February 15, 2026
1. Introduction
Big Dreams Group (“we”, “our”, “us”) operates the Brain Challenge mobile application (the “App”). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use the App. By using the App, you agree to the collection and use of information in accordance with this policy.
2. Information We Collect
2.1 Information You Provide
Account information. When you create an account, we collect your name, email address, and profile picture (if signing in with Google). Account creation is optional; you can use the App without creating an account.
Certificate information. When you request an IQ certificate, we collect the name you provide for display on the certificate.
2.2 Information Collected Automatically
Quiz data. We collect your quiz results, including scores, answers, time taken, and category breakdowns. If you are signed in, this data is stored on our servers and linked to your account.
Purchase information. When you make in-app purchases, transaction data is processed by Google Play and our subscription management provider. We do not collect or store your payment card details.
Device information. We may collect basic device information such as device type, operating system version, and unique device identifiers for analytics and to improve app performance.
3. How We Use Your Information
- To provide and maintain the App, including quiz functionality, score tracking, and certificate generation.
- To create and manage your account.
- To process in-app purchases and manage your subscription status.
- To track your quiz history and display your results over time.
- To generate personalised IQ certificates.
- To improve the App and develop new features.
- To communicate with you about updates, if you have opted in.
4. Data Storage and Security
Your data is stored on secure servers. All data transmitted between the App and our servers is encrypted using HTTPS/TLS. We implement appropriate technical and organisational measures to protect your personal data against unauthorised access, alteration, disclosure, or destruction. No method of transmission over the Internet is 100% secure, but we apply commercially reasonable safeguards.
5. Third-Party Services
The App relies on the following third-party services:
- Google Sign-In— for authentication. Subject to Google's Privacy Policy.
- Google Play Billing— for in-app purchases. Subject to Google's Privacy Policy.
- Subscription management provider — for verifying purchases and handling subscription lifecycle.
We recommend reviewing the privacy policies of these third-party services for more information about how they handle your data.
6. Data Sharing
We do not sell, trade, or rent your personal information to third parties. We may share your information only:
- With service providers who assist us in operating the App, solely for the purposes described in this policy.
- If required by law, regulation, legal process, or governmental request.
- To protect our rights, privacy, safety, or property, or that of our users or the public.
7. Data Retention
We retain your personal data for as long as your account is active or as needed to provide you with the App's services. If you request account deletion, we will delete your personal data within 30 days, except where retention is required for legal or legitimate business purposes. Quiz results stored locally on your device are retained until you uninstall the App or clear its data.
8. Your Rights
Depending on your location, you may have the following rights regarding your personal data:
- Access — request a copy of the personal data we hold about you.
- Correction — request that we correct inaccurate or incomplete data.
- Deletion — request that we delete your account and associated data.
- Portability — request your data in a portable format.
- Objection — object to certain processing of your data.
To exercise any of these rights, email us at [email protected]. We will respond within 30 days.
9. Children's Privacy
The App is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If we learn that we have collected personal data from a child under 13, we will take steps to delete that information promptly. If you believe we may have collected information from a child under 13, please contact us.
10. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy within the App and updating the “Last updated” date at the top of this page.
11. Contact
Questions or concerns about this Privacy Policy or our data practices: [email protected].
See also our Terms of Use.
Disclaimer: Brain Challenge is an entertainment brain-training application and does not provide clinically validated IQ assessments. Scores and certificates are for entertainment and personal-development purposes only.