Privacy Policy

1. Introduction

EnterStacks ("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 ("App") available on iOS and Android platforms.

By using the App, you consent to the data practices described in this policy. If you do not agree with the terms of this Privacy Policy, please do not access or use the App.

2. Non-Custodial Wallet

EnterStacks is a non-custodial wallet application with a built-in game, in-game virtual currency (not blockchain tokens or fiat), and an ad-supported experience. This means for your wallet:

• We never have access to your private keys or seed phrases
• Your cryptographic keys are generated and stored locally on your device
• We cannot recover your wallet if you lose access to your device or credentials
• You have full control and responsibility over your digital assets
• Transactions are broadcast directly to the blockchain without passing through our servers

3. Information We Collect

3.1 Information You Provide Directly

• Account Information: When you sign in with Google or Apple, we receive your email address, name, and profile picture (Apple Sign-In may provide a private relay email at your discretion)
• Profile Information: Username or display name you choose for leaderboards
• Communications: Information you provide when contacting our support team
• Referral Information: Data related to referral codes you share or use

3.2 Information Collected Automatically

• Device Information: Device type, model, operating system version, unique device identifiers
• Usage Data: Game scores, in-game virtual points earned and spent, power-ups used, skins unlocked, daily challenges completed, streak information, ad impressions and interactions (including optional rewarded ads where offered)
• Advertising Data:Advertising identifiers where permitted (such as Apple's IDFA or Google's Advertising ID), coarse or approximate location derived for ad delivery, and campaign or conversion metadata from ad networks
• Log Data: Access times, pages/screens viewed, app crashes, error reports
• Network Information: IP address, mobile network information, connection type
• Blockchain Data: Public wallet addresses (which are publicly visible on the blockchain)

3.3 Information We Do NOT Collect

• Private keys or seed phrases
• Precise geolocation data
• Contact lists or phone numbers
• Photos, videos, or files from your device
• Financial account or payment card information (all transactions occur on-chain)

4. How We Use Your Information

We use the information we collect to:

• Provide, operate, and maintain the App and its features
• Create and manage your user account
• Display leaderboards and game statistics
• Process referral rewards and in-game promotions
• Track daily challenges and streaks
• Deliver, measure, and personalize advertising (where permitted), including frequency capping and fraud prevention
• Grant optional in-game virtual currency when you choose to watch rewarded ads, where available
• Send push notifications about rewards, challenges, or important updates (with your consent)
• Respond to your comments, questions, and support requests
• Monitor and analyze usage patterns to improve the App
• Detect, prevent, and address fraud, cheating, and security issues
• Comply with legal obligations and enforce our Terms of Service

5. App Tracking and Advertising Identifiers

On iOS devices, we comply with Apple's App Tracking Transparency (ATT) framework. We will request your permission before tracking your activity across other companies' apps and websites for certain advertising or analytics uses. You may grant or deny this permission at any time through your device settings.

If you deny tracking permission on iOS, we will not access your device's Identifier for Advertisers (IDFA) for cross-app/website tracking as described by Apple, and we will limit associated data sharing with ad partners accordingly.

On Android, advertising partners may use the Google Advertising ID (GAID) or similar device identifiers subject to your device and Google Play settings. You can reset or opt out of personalized ads in your Google account or device settings where available.

6. Advertising and Ad Partners

EnterStacks is ad-supported. We and our advertising partners may show ads (for example banner, interstitial, native, or video ads) and may offer optional rewarded ads that grant in-game virtual currency if you choose to engage. Ad partners may collect or receive identifiers and usage signals to deliver and measure ads, prevent fraud, and cap how often you see an ad.

Ad partners operate under their own privacy policies. We encourage you to review the privacy notices linked in the App or provided by your platform (Apple App Store, Google Play) for the SDKs we use.

In-game virtual currency has no cash value, is not a digital asset on a blockchain, and cannot be withdrawn as cryptocurrency or fiat.

7. Third-Party Services and Analytics

We may use third-party services that collect information to help us improve the App:

• Google Analytics / Firebase: For app analytics, crash reporting, and performance monitoring
• Google Sign-In / Apple Sign-In: For authentication services
• Blockchain APIs: For querying blockchain data and broadcasting transactions
• Push Notification Services: Apple Push Notification Service (APNs) and Firebase Cloud Messaging (FCM)
• Advertising and Mediation SDKs: Third-party ad networks and mediation platforms that serve and measure advertisements in the App

These services have their own privacy policies governing the use of your information. We encourage you to review their privacy policies. Links to relevant third-party privacy policies are available within the App.

8. Information Sharing and Disclosure

We do not sell, trade, or rent your personal information to third parties. We may share information in the following circumstances:

• Service Providers: With trusted third parties who perform services on our behalf (hosting, analytics, customer support, advertising and measurement), bound by contractual obligations to protect your data where applicable
• Legal Requirements: When required by law, subpoena, court order, or government request
• Protection of Rights: To protect our rights, privacy, safety, or property, or that of our users or the public
• Business Transfers: In connection with a merger, acquisition, bankruptcy, or sale of assets
• Public Leaderboards: Your chosen username and game scores are visible to other users on leaderboards
• With Your Consent: In any other cases where you have provided explicit consent

9. Data Retention

We retain your information for as long as your account is active or as needed to provide you services. Specifically:

• Account Data: Retained until you delete your account
• Game Statistics: Retained for the lifetime of the App for leaderboard and in-game economy purposes
• Transaction Logs: Retained for 7 years for compliance purposes
• Support Communications: Retained for 3 years after resolution
• Analytics Data: Aggregated and anonymized after 26 months

After deletion, we may retain anonymized or aggregated data that cannot be used to identify you.

10. Account Deletion

You may request deletion of your account and all associated personal data at any time. You can do this by:

• Using the "Delete Account" option in the App's settings
• Sending an email to privacy@enterstacks.com with the subject line "Account Deletion Request"

Upon receiving a deletion request, we will delete your account and personal data within 30 days, except for information we are legally required to retain (such as transaction logs for compliance). Your locally stored private keys are not affected by account deletion, as they are stored only on your device.

Important: Account deletion will permanently remove your game progress, in-game virtual currency balances, skins, and leaderboard history. This action cannot be undone. Your cryptocurrency assets remain accessible through your private keys and recovery phrase.

11. Data Security

We implement appropriate technical and organizational security measures to protect your information, including:

• Encryption of data in transit using TLS/SSL
• Encryption of sensitive data at rest
• Regular security assessments and penetration testing
• Access controls and authentication requirements for our systems
• Local encryption of private keys on your device

However, no method of transmission over the Internet or electronic storage is 100% secure. We cannot guarantee absolute security.

12. International Data Transfers

Your information may be transferred to and processed in countries other than your country of residence. These countries may have different data protection laws. By using the App, you consent to such transfers. We ensure appropriate safeguards are in place, including standard contractual clauses where required, to protect your information in compliance with applicable laws.

13. Your Privacy Rights

Depending on your location, you may have the following rights:

13.1 All Users

• Access: Request a copy of the personal information we hold about you
• Correction: Request correction of inaccurate or incomplete information
• Deletion: Request deletion of your account and associated data (see Section 10)
• Opt-Out: Unsubscribe from marketing communications at any time

13.2 European Economic Area (EEA) Residents — GDPR Rights

Under the General Data Protection Regulation, you additionally have the right to:

• Data portability — receive your data in a structured, machine-readable format
• Restrict processing of your personal data
• Object to processing based on legitimate interests
• Withdraw consent at any time (without affecting the lawfulness of prior processing)
• Lodge a complaint with your local data protection supervisory authority

Our lawful bases for processing include: your consent, performance of a contract (the Terms of Service), and our legitimate interests in operating and improving the App and (where applicable) delivering relevant advertising.

13.3 California Residents — CCPA / CPRA Rights

• Right to know what personal information is collected, used, shared, or sold
• Right to delete personal information held by businesses
• Right to correct inaccurate personal information
• Right to opt-out of the "sale" or "sharing" of personal information (including sharing for cross-context behavioral advertising). We do not sell your personal information for money. We may share identifiers and usage data with advertising partners as described in this policy; where required, you may exercise opt-out rights through the App, your device settings, or by contacting us.
• Right to limit the use of sensitive personal information
• Right to non-discrimination for exercising your privacy rights

To exercise any of these rights, please contact us at privacy@enterstacks.com. We will respond within 30 days (or 45 days with notice of extension where permitted by law).

14. Push Notifications

With your permission, we may send push notifications about:

• Daily challenges and streaks
• In-game promotions or updates
• Referral rewards
• Important security alerts
• App updates and new features

You can opt out of push notifications at any time through your device settings or within the App.

15. Children's Privacy

The App is not intended for users under 18 years of age. We do not knowingly collect personal information from children under 18. If you are a parent or guardian and believe your child has provided us with personal information, please contact us at privacy@enterstacks.com. If we discover that a child under 18 has provided us with personal information, we will delete such information from our servers promptly.

16. Links to Third-Party Websites

The App may contain links to third-party websites or services that are not operated by us. We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services. We encourage you to review the privacy policy of every site you visit.

17. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by:

• Posting the new Privacy Policy in the App
• Updating the "Last updated" date at the top of this page
• Sending you a push notification or email (for significant changes)

Your continued use of the App after any changes indicates your acceptance of the updated Privacy Policy.

18. Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us at:

We will make every effort to resolve your concerns in a timely manner.