Privacy Policy

Last updated: January 27, 2026

1. Introduction

Clock n Cube ("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 (the "App"). Please read this policy carefully to understand our practices regarding your data.

2. Information We Collect

2.1 Information You Provide

  • Display Name (Username): A display name is required to create an account. This name is used for leaderboards and in-game identification. Your display name is not shared with third parties except as described in Section 4 (Data Sharing). We use device-based authentication with secure tokens—we do not use passwords.
  • Email Address (Optional): You may optionally choose to link an email address to your account. Linking an email provides several benefits:
    • Account recovery via one-time password (OTP) verification on new devices
    • Cross-platform account and purchase recovery (iOS ↔ Android)
    • Ability to access your account and purchases across different devices and platforms
    If you choose not to link an email, you can still use the App and recover your account if you have made purchases (see Section 6.1 for account recovery details). However, if you lose access to your device and have no purchases, you will need to contact support for account recovery.

2.2 Information Automatically Collected

  • Device Installation ID: We generate and store a unique identifier (UUID v4) for each app installation. This identifier is:
    • Generated locally on your device when you first launch the App
    • Stored securely on your device
    • Used to enforce device limits and prevent unauthorized access
    • Used to associate your account with specific device installations
    Important: We do not use device signatures or fingerprinting. We only track a unique ID per installation for security and device management purposes.
  • System Device Identifier (Metadata Only): We may collect your device's Android ID (Android) or Identifier for Vendor (IDFV) (iOS) for analytics and metadata purposes only. This information is not used for authentication or account identification.
  • Platform Information: We collect your device platform (Android or iOS) and app version to provide appropriate functionality and support.

2.3 Gameplay Data

  • Solve Sessions: We collect data about your puzzle-solving sessions, including:
    • Puzzle type (Rubik's Clock, Cube dimensions)
    • Game mode (Practice, Average of 5, One-Off, PvP)
    • Solve times and statistics
    • Move sequences and timestamps
    • Scramble data
    • Session status and completion data
  • Timed Events: For competitive events (Average of 5, One-Off), we collect:
    • Event start and completion times
    • Best, worst, and average solve times
    • Round-by-round performance data
  • Leaderboard Data: Your solve times and statistics are used to populate public leaderboards. Your display name and scores are visible to other users on these leaderboards.
  • PvP Match Data: When participating in player-versus-player matches, we collect match participation data, solve times, and rankings.

2.4 Purchase and Entitlement Data

  • Purchase Receipts and Proofs: We collect purchase receipts and verification data from Google Play (Android) or the App Store (iOS) to verify your purchases and manage your entitlements. This includes:
    • Store transaction IDs
    • Product IDs
    • Purchase verification tokens
    • Store type (Google Play or App Store)
    This information is used to verify purchase ownership and restore your entitlements across devices and platforms.
  • Purchase History: We maintain records of your verified purchases on our servers to manage your entitlements (premium features, guides, etc.).
  • Promo Code Redemptions: If you redeem promotional codes, we track these redemptions to apply the appropriate entitlements.

2.5 Crash and Diagnostics Data

We may collect crash logs and diagnostic information to improve app stability and fix bugs. Any such data collection will be done in accordance with this Privacy Policy and applicable platform policies.

2.6 Contact Form and Support Data

When you submit a contact form, feedback, or support request through the App or our website, we collect the following information:

  • Contact Information: Your name (optional) and the message content you submit. If you provide an email address (for example when submitting via our website contact form), we collect it; the in-app contact form does not currently ask for email.
  • Submission Details: The category of your request (e.g., bug report, feedback, general query, account issue), subject line, and message content
  • Device Information (when you submit from the app): When you submit from the mobile app, we automatically collect device-specific information to help us diagnose and resolve issues: device model (e.g., iPhone 14 Pro, Samsung Galaxy S23), operating system version (e.g., iOS 17.2, Android 14), app version, and platform (Android or iOS). The website contact form does not send this information.
  • Attachments: If you choose to attach images or screenshots to your submission, we collect those files (up to 3 images, maximum 5MB each) to help us understand and address your issue
  • Contact Preference: Whether you consent to being contacted back regarding your submission
  • Source Information: We infer whether the submission came from the mobile app or website (for example from authentication, app version, or platform); we do not ask you to provide this.
  • Account Association (if applicable): If you are logged into your account when submitting, we may associate your submission with your account to provide better support

This information is used solely for the purpose of responding to your support request, addressing your feedback, or resolving reported issues. We retain this data for as long as necessary to provide support and resolve issues, or as required by law.

Image Attachments: Images you attach to contact submissions are stored securely on our servers and are only accessible to authorized support staff. We do not use these images for any purpose other than addressing your specific support request.

3. How We Use Your Information

We use the information we collect to:

  • Provide Services: Create and manage your account, enable gameplay features, and maintain your game progress and statistics
  • Authentication and Security: Authenticate your account using device-based tokens (no passwords), enforce device limits, and prevent unauthorized access
  • Account Recovery: Enable account recovery through email verification (if email is linked) or purchase verification (if you have purchases). Our system automatically classifies accounts and determines the appropriate recovery method.
  • Cross-Platform Access: Enable you to access your account and purchases across different devices and platforms (iOS and Android) when you have linked an email address
  • Leaderboards: Display your solve times and rankings on public leaderboards
  • Multiplayer Features: Enable PvP matches, matchmaking, and real-time competition
  • Entitlement Management: Verify and manage your access to premium features and content based on your purchases. Your purchase entitlements are never lost—even if you delete your account, reinstalling the App will restore your entitlements based on store records (see Section 6.1).
  • App Improvement: Analyze usage patterns, fix bugs, and improve app performance and user experience
  • Support: Respond to your support requests, feedback, and provide customer service. This includes processing contact form submissions, troubleshooting issues using device information you provide, and addressing bug reports with attached screenshots or images
  • Legal Compliance: Comply with applicable laws, regulations, and legal processes

4. Data Sharing and Disclosure

We do not sell your personal information. We share your information only in the following limited circumstances:

4.1 Public Leaderboards

Your display name and solve times are displayed on public leaderboards that are visible to all users of the App. This is an essential feature of the competitive gameplay experience.

4.2 Email Service Provider (SendGrid)

If you choose to link an email address to your account, we share your email address with SendGrid, our email service provider, solely for the purpose of sending you verification codes (OTPs) for account linking and recovery. SendGrid processes emails on our behalf and is contractually obligated to protect your information. You can review SendGrid's privacy policy at https://www.twilio.com/legal/privacy.

Important: Your display name (username) is not shared with SendGrid or any other third-party service providers.

4.3 Contact Form Data

Contact form submissions, including your name, email (if provided), message content, device information, and any attached images, are stored on our servers and are only accessible to authorized support staff. We do not share contact form data with third parties except as necessary to provide support services or as required by law.

4.4 App Store Platforms

When you make in-app purchases, your purchase transactions are processed by Google Play (Android) or the App Store (iOS). These platforms collect payment information and transaction data according to their own privacy policies. We receive purchase receipts from these platforms to verify and manage your entitlements.

4.5 Legal Requirements

We may disclose your information if required by law, court order, or in response to valid legal requests from government authorities or law enforcement.

4.6 Business Transfers

In the event of a merger, acquisition, reorganization, or sale of assets, your information may be transferred to the acquiring entity, subject to the same privacy protections.

5. Data Storage and Security

Your data is stored securely on our servers using industry-standard security measures. We implement appropriate technical and organizational measures to protect your personal information against unauthorized access, alteration, disclosure, or destruction.

Authentication Security: We use secure token-based authentication without passwords. Your account is protected by:

  • Short-lived access tokens for API requests
  • Long-lived refresh tokens stored securely on your device
  • Device-based authentication that associates your account with specific device installations

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 information, we cannot guarantee absolute security.

6. Your Rights and Choices

6.1 Account Recovery

Our App provides multiple ways to recover your account depending on your account configuration:

  • Email-Linked Accounts: If you have linked an email address, you can recover your account on any device by verifying your email with a one-time password (OTP). This also enables cross-platform access (iOS ↔ Android).
  • Accounts with Purchases (No Email): If you have made purchases but haven't linked an email, you can recover your account automatically. Our system retrieves your purchase receipts directly from Google Play or the App Store and automatically verifies them to grant access—no manual action required from you.
  • Guest Accounts (No Email, No Purchases): If you lose access to your device and have no email or purchases, your account cannot be recovered. Without any identifying information (email or purchase records), there is no way to verify account ownership. These accounts may be automatically deleted after 90 days of inactivity.

Our account recovery system uses a classification system that automatically determines the appropriate recovery method based on your account's email status and purchase history.

Support Assistance: If you have an email-linked account with purchases but have lost access to your email address, you may contact support for assistance. In such cases, we can help verify your ownership and update your email address to restore access to your account and purchases.

6.2 Account Deletion

You have the right to delete your account and all associated data at any time. Account deletion is permanent and cannot be undone. When you delete your account, we permanently delete:

  • Your account and profile information
  • Your display name
  • Your linked email address (if any)
  • All solve sessions and statistics
  • All timed events and leaderboard rankings
  • All device associations
  • All authentication tokens
  • All purchase history records (from our servers)
  • All contact form submissions associated with your account
  • All other data associated with your account

Important Note About Purchase Entitlements: When you delete your account, we delete all purchase records from our servers. However, if you reinstall the App, your purchase entitlements will be restored based on purchase records maintained by Google Play or the App Store. This is required for compliance with platform policies—purchase entitlements are never permanently lost, as they are tied to your store account, not just your App account.

You can delete your account directly from the App (Profile → Menu → Delete Account) or by visiting our account deletion page for instructions. Account deletion requires an active internet connection.

6.3 Display Name Changes

You can change your display name from within the App, subject to availability and a cooldown period (typically 3 months between changes) to prevent abuse.

6.4 Email Management

You can link an email address to your account through the App settings. Linking an email enables cross-platform account and purchase recovery.

At this time, removing an email address from your account requires deleting your account (see Section 6.2).

6.5 Data Access

You can view much of your data directly in the App (solve times, statistics, leaderboard rankings). For additional data access requests, please contact us.

7. Data Retention

We retain your data for as long as your account is active or as needed to provide you with our services.

Inactive Account Deletion: We may delete accounts that have no purchases and no linked email address if they remain inactive for 90 days. This helps us maintain our database and ensures we only retain active accounts.

Accounts with Purchases: We will never delete accounts that have made purchases. We always find a way to restore or re-apply purchases, with appropriate security safeguards (such as email verification if an email is provided on the account).

When you delete your account, we immediately and permanently delete all associated data from our servers. However, we may retain certain aggregated, anonymized data for business analysis purposes, but this data cannot be linked to your account or used to identify you.

8. Children's Privacy

The App is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us immediately, and we will delete such information.

9. International Data Transfers

Your data is primarily stored on servers located in Frankfurt, Germany. Your information may also be transferred to and processed in other countries as necessary to provide our services. These countries may have data protection laws that differ from those in your country. By using the App, you consent to the transfer of your information to these countries.

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, or other factors. We will notify you of any material changes by:

  • Posting the updated Privacy Policy on this page
  • Updating the "Last updated" date at the top of this policy
  • Providing notice through the App when significant changes are made

You are advised to review this Privacy Policy periodically. Your continued use of the App after any changes constitutes your acceptance of the updated Privacy Policy.

11. Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us or email us at support@clockncube.com.

For account deletion requests, you can delete your account directly from the App or visit our account deletion page for detailed instructions.