🔒 Privacy Policy

Introduction

ChangeTracker ("we," "our," or "the app") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application.

Information We Collect

1. Local Data Storage

ChangeTracker stores all your personal data locally on your device. This includes:

• Habit tracking data: Your habits, goals, progress, and completion history
• Mood journal entries: Your mood records, notes, and timestamps
• Gratitude journal entries: Your gratitude notes and reflections
• Personal notes and diary entries: Text, drawings, and calendar entries
• Sleep records: Sleep duration and quality logs
• Water intake logs: Daily hydration tracking
• Morning routine checklists: Your custom routine items and completion status
• Focus timer sessions: Pomodoro session history
• Daily affirmations: Your selected and custom affirmations
• App preferences: Language, theme, sound settings, and notification preferences

2. Biometric Data (Optional)

If you choose to enable biometric authentication for passcode-protected notes:

• Biometric data (fingerprint, face recognition) is processed locally by your device's operating system
• We do not collect, store, or have access to your biometric information
• This feature uses Android's built-in biometric API
• Biometric data never leaves your device

3. Device Permissions

The app requests the following permissions:

Required Permissions:

• Internet Access: Required for displaying ads (AdMob)
• Network State: To check connectivity for ad delivery

Optional Permissions:

• Notifications: To send you reminders (only if you enable them)
• Biometric/Fingerprint: For optional security on personal notes
• Storage Access: To import/export your data backup files

How We Use Your Information

Local Data Usage

Your locally stored data is used solely to:

• Display your tracking history and progress
• Calculate statistics and trends
• Provide you with personalized insights
• Enable backup and restore functionality (when you choose to export)

Third-Party Services

Google AdMob

We use Google AdMob to display advertisements in the app. AdMob may collect:

• Device Information: Device model, operating system version, unique device identifiers
• Usage Information: How you interact with ads
• Location Information: Approximate location based on IP address (for targeted advertising)

Data Storage and Security

Local Storage

• All personal data is stored on your device using secure Android storage mechanisms
• Data is stored in app-private directories inaccessible to other apps
• Encrypted storage for sensitive data (when passcode is enabled)

Data Security Measures

We implement industry-standard security practices:

• Passcode Protection: Optional passcode for personal notes
• Biometric Authentication: Optional fingerprint/face unlock
• Encryption: Sensitive data encrypted when passcode is enabled
• Secure Storage: App-private storage protected by Android security sandbox

Data Sharing and Disclosure

We Do Not Share Your Personal Data

• We do not sell, trade, or transfer your personal information to third parties
• We do not upload your tracking data to any servers
• Your habits, moods, journal entries, and notes remain private and local

Third-Party Disclosure

The only third-party service with data access is:

• Google AdMob: For serving advertisements (see Third-Party Services section)

Legal Requirements

We may disclose information if required by law or to:

• Comply with legal processes
• Enforce our terms of service
• Protect our rights, property, or safety
• Protect the rights, property, or safety of others

Data Retention

Local Data

Your data remains on your device until you:

• Manually delete it within the app
• Clear the app's data via device settings
• Uninstall the app

Backups

• If you create backups (export feature), you control the backup files
• Backup files are stored where you choose (device storage or cloud service)
• We do not have access to your backup files

Your Privacy Rights

You have the right to:

• Access Your Data: All your data is accessible within the app
• Delete Your Data: Delete individual entries or clear all data in app settings
• Export Your Data: Export your data as backup files
• Opt-out of Ads: Disable personalized ads via Google settings

Children's Privacy

ChangeTracker is not directed to children under 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.

International Users

ChangeTracker is available worldwide. Your data is stored locally on your device regardless of your location. AdMob may process data according to Google's international data transfer policies.

Changes to This Privacy Policy

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

• Updating the "Last Updated" date at the top
• Providing an in-app notification for significant changes

Your continued use of the app after changes indicates acceptance of the updated policy.

Contact Us

If you have questions or concerns about this Privacy Policy or your data:

Your Consent

By using ChangeTracker, you consent to our Privacy Policy and agree to its terms.