Introduction

ZeroG ("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 ZeroG (the "App").

Please read this privacy policy carefully. If you do not agree with the terms of this privacy policy, please do not access the application.

Information We Collect

Personal Information

We collect information that you provide directly to us when you:

• Create an account
• Use our services
• Contact us for support

This information may include:

• Name: Your display name
• Email address: For account creation and communication
• Profile information: Username, avatar (if provided)
• Authentication data: When you sign in with Google or Apple

Usage Data

We automatically collect certain information when you use the App:

• Study data: Flashcard decks, study sessions, quiz results, progress tracking
• Device information: Device type, operating system, unique device identifiers
• Usage statistics: Features used, time spent studying, achievement progress
• Performance data: Crash reports, error logs

Third-Party Data

When you use third-party sign-in services (Google Sign-In, Sign in with Apple), we receive:

• Basic profile information (name, email)
• Authentication tokens
• As permitted by the third-party service's privacy policy

How We Use Your Information

We use the information we collect to:

• Provide and maintain the App: Create and manage your account, sync your data
• Improve our services: Analyze usage patterns, fix bugs, develop new features
• Personalize your experience: Track your progress, unlock achievements, show relevant content
• Communicate with you: Send important updates, respond to support requests
• Ensure security: Detect and prevent fraud, abuse, and security incidents
• Comply with legal obligations: Respond to legal requests, enforce our terms

Data Storage and Security

Firebase Services

We use Google Firebase to store and process your data:

• Firebase Authentication: Manages user accounts and authentication
• Cloud Firestore: Stores your flashcard decks, study progress, and user data
• Firebase Analytics: Tracks app usage and performance (anonymized)
• Firebase App Check: Ensures requests come from legitimate app instances

Your data is stored on secure servers operated by Google. Firebase complies with industry-standard security practices and regulations.

Security Measures

We implement appropriate technical and organizational measures to protect your data:

• Encryption in transit (HTTPS/TLS)
• Encryption at rest
• Regular security assessments
• Access controls and authentication

However, no method of transmission over the internet is 100% secure. While we strive to protect your personal information, we cannot guarantee absolute security.

Data Sharing and Disclosure

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

Service Providers

We share data with third-party service providers who help us operate the App:

• Google Firebase: Cloud infrastructure and services
• RevenueCat: In-app purchase and subscription management
• Google Sign-In: Authentication service
• Apple Sign-In: Authentication service

These providers are contractually obligated to protect your data and use it only for the purposes we specify.

Legal Requirements

We may disclose your information if required by law or in response to:

• Legal processes (subpoenas, court orders)
• Government requests
• Protection of our rights, property, or safety
• Investigation of fraud or security issues

Business Transfers

If ZeroG is involved in a merger, acquisition, or sale of assets, your information may be transferred. We will notify you before your information becomes subject to a different privacy policy.

Your Rights and Choices

Access and Update

You can access and update your personal information through the App:

• Profile settings: Update your name and preferences
• Study data: View your decks, progress, and achievements

Data Deletion

You have the right to delete your account and data:

• In-App: Go to Settings → Account → Delete Account
• Email: Contact us at support@zerog.work

When you delete your account:

• Your profile and authentication data are permanently deleted
• Your study data (decks, progress, achievements) is permanently deleted
• Some data may be retained for legal or security purposes (e.g., transaction records)
• Deletion is irreversible

Opt-Out of Communications

You can opt out of non-essential communications:

• Disable notifications in the App settings
• Unsubscribe from marketing emails (if applicable)

Data Portability

You can request a copy of your data by contacting us at support@zerog.work.

Children's Privacy

ZeroG is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately.

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 the transfer of your information to the United States and other countries where our service providers operate.

Third-Party Links

The App may contain links to third-party websites or services (e.g., Privacy Policy, Terms of Service). We are not responsible for the privacy practices of these third parties. We encourage you to review their privacy policies.

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 in the App
• Updating the "Last Updated" date
• Sending you a notification (for material changes)

Your continued use of the App after changes constitutes acceptance of the updated Privacy Policy.

Contact Us

If you have questions or concerns about this Privacy Policy, please contact us:

• Email: support@zerog.work
• Website: https://zerog.work/support

Your California Privacy Rights

If you are a California resident, you have additional rights under the California Consumer Privacy Act (CCPA):

• Right to know what personal information is collected
• Right to know if personal information is sold or disclosed
• Right to opt-out of the sale of personal information (we do not sell your data)
• Right to deletion
• Right to non-discrimination

To exercise these rights, contact us at support@zerog.work.

European Privacy Rights

If you are in the European Economic Area (EEA), you have rights under the General Data Protection Regulation (GDPR):

• Right to access your data
• Right to rectification
• Right to erasure ("right to be forgotten")
• Right to restrict processing
• Right to data portability
• Right to object to processing
• Right to withdraw consent

To exercise these rights, contact us at support@zerog.work.