Privacy Policy for HalloSunset

Introduction

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

Information We Do NOT Collect

HalloSunset does not collect, store, or transmit any personal data. We are committed to your privacy and operate on a "no data collection" principle.

Location Usage (Not Collection)

• What we access: Your device's current location coordinates (only when you grant permission)
• How we use it: Location is used immediately and locally to calculate sunrise and sunset times
• What we do NOT do: We do not store, save, or remember your location data
• Storage: No location data is stored anywhere - it is used once and discarded immediately

No Data Collection

• User Data: We do not collect any personal information, usage data, or analytics
• Device Information: We do not collect device identifiers, iOS version, or device type
• Location History: We do not store or track your location history
• Usage Analytics: We do not track how you use the app or collect behavioral data

Local Preferences Only

• Notification Settings: Your notification preferences are stored locally on your device only
• App Settings: All app configurations remain on your device
• No Accounts: No user accounts, profiles, or cloud storage

How We Process Data Locally

Since we do not collect any data, all processing happens locally on your device:

1. Calculate Sunrise and Sunset Times: When you grant location permission, your device's location is used immediately to calculate times, then discarded
2. Schedule Local Notifications: Your notification preferences are processed locally by iOS to schedule alerts
3. Manual Location Input: If you choose manual input, coordinates are used for calculations and not stored

Data Sharing and Third Parties

We have no data to share because we don't collect any data. There is no data transmission, storage, or sharing with any third parties.

Third-Party Services

The app uses the following components that process data locally only:

• Solar Library: Open-source astronomical calculations library that performs calculations locally on your device
• iOS System Frameworks: Core Location, UserNotifications, and other Apple frameworks that operate locally

Data Storage and Security

No Data Storage

• No Personal Data Storage: We do not store any personal data anywhere
• No Servers: We do not maintain any servers or databases
• No Cloud Storage: No data is transmitted to or stored in the cloud
• No Data Retention: There is no data to retain because we don't collect any

Security by Design

• Zero Data Collection: The most secure approach is not collecting data in the first place
• Local Processing Only: All calculations happen on your device using iOS secure frameworks
• No Network Transmission: No personal data ever leaves your device

Your Privacy Rights

Location Permission

• You can grant or deny location access at any time through iOS Settings
• The app provides manual location input as an alternative if you deny location access
• You can change location permissions in Settings > Privacy & Security > Location Services > HalloSunset

Notification Permission

• You can enable or disable notifications at any time
• Notification preferences can be managed within the app or through iOS Settings
• You can change notification permissions in Settings > Notifications > HalloSunset

Data Deletion

• Since we don't collect any data, there is no personal data to delete
• Uninstalling the app removes only local app preferences (notification settings)
• No data cleanup is needed because no personal data exists anywhere

Children's Privacy

HalloSunset does not collect personal information from anyone, including children under 13 years of age. Since we don't collect any data, the app is completely safe for children and families to use.

International Data Transfers

Since all data processing occurs locally on your device, no international data transfers occur.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. When we do:

• We will update the "Last Updated" date at the top of this policy
• We will notify users of significant changes through app updates
• Continued use of the app after changes constitutes acceptance of the updated policy

Apple Privacy Requirements Compliance

This app complies with Apple's App Store Review Guidelines and privacy requirements:

• We have implemented a Privacy Manifest (PrivacyInfo.xcprivacy) as required for iOS 17+
• Location data usage is clearly declared and justified
• No tracking or data collection occurs beyond stated purposes
• All required permission descriptions are provided

Consent

By using HalloSunset, you consent to the collection and use of information as described in this Privacy Policy. If you do not agree with this policy, please do not use the app.

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Summary for Apple App Store

Data Types Collected:

• Location (for sunrise/sunset calculations only)
• Device information (for app optimization)

Data Usage:

• All data processing occurs locally on device
• No data transmission to external servers
• No data sharing with third parties
• No tracking or analytics

User Control:

• Users can deny location access and use manual input
• Users can disable notifications at any time
• All data can be deleted by uninstalling the app

This privacy policy ensures compliance with Apple's App Store requirements while maintaining user trust through transparency and data minimization practices.