Privacy Policy - Energy tracker

Effective Date: August 10, 2025
Last Updated: August 10, 2025

Introduction

Energy Rhythm Tracker ("we," "our," or "the extension") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard information when you use our Chrome extension for optimizing daily productivity through chronobiology-based energy rhythm tracking.

Information We Collect

Personal Rhythm Data

• Energy rhythm preferences you configure (peak/low energy times)

• Chronotype profile selection (morning person, night owl, mixed type)

• Custom work schedule settings (start time, end time, timezone)

• Notification preferences (frequency, types, quiet hours)

Application Settings

• Display preferences (theme, language, time format)

• Feature usage settings (enabled/disabled functionalities)

• Onboarding completion status

• Extension version information

Optional Analytics Data (With Your Consent)

• Feature usage statistics (which functions you use, not what you do with them)

• General usage patterns (how often you interact with the extension)

• Anonymous performance data (loading times, error rates)

• No personal identifiers are ever collected with analytics data

Data We Do NOT Collect

• ❌ Personal information (name, email, phone number)

• ❌ Browsing history or website visit data

• ❌ Content of your web pages or applications

• ❌ Personal calendar contents (even with calendar integration)

• ❌ Detailed activity tracking or keystroke monitoring

• ❌ Location data or IP addresses

• ❌ Social media profiles or external account information

How We Use Your Information

Core Functionality

• Personalized recommendations based on your configured energy rhythms

• Intelligent notifications delivered at optimal times according to your schedule

• Custom rhythm calculations for your specific chronotype and preferences

• Settings persistence across browser sessions and device restarts

Analytics and Improvement (Optional)

• Extension improvement through anonymous usage pattern analysis

• Feature optimization based on which functions are most helpful

• Performance monitoring to ensure smooth operation

• Bug detection and resolution

We Do NOT Use Your Data For

• ❌ Advertising or marketing purposes

• ❌ Selling to third parties

• ❌ Tracking across websites

• ❌ Creating user profiles for external purposes

• ❌ Behavioral targeting or profiling

Data Storage and Security

Local Storage

• All personal data is stored locally in your browser using Chrome's secure storage API

• No external servers - your rhythm preferences and settings never leave your device

• Browser-level encryption protects your data using Chrome's built-in security

• Automatic cleanup when you uninstall the extension

Optional Sync Storage

• Cross-device synchronization only if you explicitly enable Chrome sync

• Only non-sensitive preferences sync across devices (theme, language, basic settings)

• Rhythm configurations can optionally sync if you choose to enable this feature

• Complete user control - you can disable sync at any time

Data Security Measures

• No data transmission to external servers during normal operation

• Chrome security standards - we use only Chrome's approved storage mechanisms

• No third-party integrations that could compromise your data

• Regular security updates following Chrome extension best practices

Data Sharing and Third Parties

We Do Not Share Your Data

• No data sales - we never sell your information to anyone

• No advertising partnerships - we don't share data with ad networks

• No analytics providers receive your personal rhythm data

• No external integrations that could access your personal information

Limited Exceptions

We may only disclose information if:

• Required by law (court order, legal process)

• Protecting rights and safety (preventing fraud or abuse)

• With your explicit consent for specific integrations you request

Your Data Rights and Controls

Data Management

• Export your data - Download all your rhythm settings and preferences in JSON format

• Delete all data - Remove all stored information through extension settings

• Selective deletion - Remove specific data types while keeping others

• View data usage - See exactly what information is stored and why

Privacy Controls

• Granular permissions - Enable/disable specific data collection features

• Analytics opt-out - Decline anonymous usage statistics collection

• Notification controls - Customize what notifications you receive and when

• Sync management - Control what data syncs across your devices

How to Exercise Your Rights

1. Through Extension Settings: Access data management options in the extension's options page

2. Contact Support: Email us at [support@energytracker.com] for assistance

3. Immediate Response: Data deletion requests are processed instantly

4. Export Support: We'll help you understand your data export if needed

Calendar Integration (Optional Feature)

If you choose to enable calendar integration:

• We only access scheduling metadata (meeting times, not content)

• No personal meeting details are stored or analyzed

• Only timing optimization - we suggest better meeting times based on your energy rhythm

• Revocable access - disable calendar integration anytime

• Local processing - calendar analysis happens on your device

Children's Privacy

• Not directed at children - Energy Rhythm Tracker is designed for adults managing work productivity

• Age restriction - Users under 18 should obtain parental consent before use

• No knowingly collected data from children under 13

• Immediate deletion if we discover data from underage users

International Users and GDPR Compliance

For European Union Users

• Legal basis for processing: Legitimate interest in providing productivity optimization

• Data minimization: We collect only data necessary for core functionality

• Right to erasure: Delete your data completely at any time

• Data portability: Export your data in machine-readable format

• Right to object: Opt out of any data processing activities

Data Processing Rights

• Access: Request information about what data we store

• Rectification: Correct any inaccurate personal data

• Erasure: Request complete deletion of your data

• Restriction: Limit how we process your data

• Portability: Receive your data in portable format

• Objection: Opt out of specific data processing

Changes to This Privacy Policy

Update Process

• Notification method: We'll notify users of significant changes through the extension

• Version tracking: Each update includes a new effective date

• Continued use: Using the extension after updates constitutes acceptance

• Change history: Previous versions available upon request

Types of Changes

• Feature additions: New data collection will require explicit consent

• Policy clarifications: Enhanced explanations of existing practices

• Legal compliance: Updates required by law or regulation changes

• Security improvements: Enhanced protection measures for your data

Contact Information

Privacy-Related Inquiries

• Email: [support@energytracker.com]

• Response Time: Within 48 hours maximum

• Subject Line: Include "Privacy Policy" for faster processing

• Languages: English and Polish support available

Data Protection Officer

• For EU users: [dpo@energytracker.com]

• Specific issues: Data rights, GDPR compliance, privacy concerns

• Business hours: Monday-Friday, 9 AM - 5 PM CET

Mailing Address

[Your Business Address]
[City, State/Country, Postal Code]

Technical Details

Chrome Extension Permissions

• storage: For saving your rhythm preferences locally

• alarms: For scheduling energy rhythm notifications

• notifications: For displaying productivity optimization alerts

• activeTab: For providing context-aware recommendations when you click the extension icon

Data Retention

• Active users: Data retained while extension is installed and actively used

• Inactive users: Settings preserved for 1 year after last use

• Uninstalled extension: All data automatically deleted

• Manual deletion: Immediate permanent removal upon request

Security Measures

• Encryption in transit: All data transfers use HTTPS

• Local encryption: Browser-level security for stored data

• No plaintext storage: Sensitive settings are appropriately protected

• Regular updates: Security patches deployed through Chrome Web Store

Compliance and Certifications

• Chrome Web Store Policies: Full compliance with Google's developer policies

• GDPR Compliant: Meets European Union data protection standards

• CCPA Awareness: Respects California Consumer Privacy Act principles

• Industry Standards: Follows privacy best practices for browser extensions

This privacy policy is specific to Energy Rhythm Tracker Chrome Extension and was last updated on August 10, 2025. For questions about this policy or our privacy practices, please contact us at [support@energytracker.com].