Overview

Buy a Brick is a mobile collectible app where users purchase bricks and build their personal wall. This privacy policy explains what data the app collects, how it is used, and how it is protected.

By using Buy a Brick, you agree to the practices described in this policy. If you do not agree, please discontinue use of the app.

Guest (Anonymous) Accounts

You may use Buy a Brick without creating an account by choosing Continue as Guest. This creates an anonymous account on your device using Firebase Authentication.

• Your bricks and progress are stored under this anonymous account and remain available as long as the app is installed on the same device.
• Anonymous accounts are not linked to any personal information such as email address or name.
• If you uninstall the app, your anonymous account and all associated data are permanently deleted and cannot be recovered.
• You can upgrade to a permanent account at any time from within the app. Your bricks are automatically transferred to the new account.

Data We Collect

• Authentication: Email address and username (registered accounts), or an anonymous device-bound identifier (guest accounts) — via Firebase Authentication.
• User data: Username, total brick count, brick collection details, and unvan (rank) — stored in Firestore.
• Purchase history: In-app purchase records managed via RevenueCat and your platform's billing system (App Store / Google Play).
• Global counter: An anonymized global total of all bricks opened across all users — used to determine rarity outcomes. No personal data is included in this counter.
• Push notifications: Device token for notifications (Firebase Cloud Messaging). Only sent with your explicit permission.

Third-Party Services

How We Use Your Data

• To create and manage your user account
• To save your brick collection and wall progress
• To determine rarity outcomes based on the global brick counter
• To process in-app purchases and restore previous purchases
• To send push notifications about app activity (only with your permission)

In-App Purchases

Buy a Brick offers a single consumable in-app purchase: one brick for $0.99. Each purchase is processed by Apple App Store or Google Play. We do not store or process payment card details. Purchase history is managed by RevenueCat for restore purposes.

All purchases are final. Refunds are handled by Apple or Google according to their respective refund policies.

Rarity & Global Counter

Buy a Brick uses a global brick counter to determine when rare bricks are awarded. This counter tracks the total number of bricks purchased across all users worldwide. The counter does not contain personally identifiable information — it is a single aggregated number stored in Firestore. The user who happens to make the purchase at a milestone number receives a rare brick.

Data Sharing

We do not sell your personal data to third parties. Data is shared only with the service providers listed above (Firebase, RevenueCat, Apple/Google) solely to operate the app. Each provider is bound by their own privacy policy.

Children's Privacy

Buy a Brick is not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If a parent or guardian believes their child has provided us with personal data, please contact us and we will delete it promptly.

Data Retention & Deletion

You can delete your account directly from the app: Settings → Delete Account. Upon deletion, your Firebase Authentication credentials, Firestore data (username, brick collection, purchase history) are permanently removed.

If you need assistance deleting your data, please contact us at the email below.

Security

Your data is stored on Google's secure Firebase infrastructure with encryption in transit and at rest. The app communicates exclusively over HTTPS and uses Firebase Security Rules to prevent unauthorized access.

Your Rights

Depending on your location, you may have the right to access, correct, or delete your personal data. Users in the European Union have additional rights under GDPR, including the right to data portability and the right to object to processing. Users in California have rights under CCPA. To exercise any of these rights, please contact us at the email below.

Changes to This Policy

This policy may be updated from time to time. Any significant changes will be reflected on this page with an updated date. Continued use of the app after changes are posted constitutes your acceptance of the updated policy.

Contact

For questions or data requests, please contact:

📧 one_brick@outlook.com