1. Overview

Buduan (referred to as "we", "us", or "our") highly values your privacy. This Privacy Policy explains how we collect, use, store, and protect your personal information when you use the Next Calendar application (the "App").

2. Information Collection

2.1 Types of Information We Collect

• Calendar Data: Events, reminders, notes, and other calendar-related information you create in the App
• Device Information: Device model, operating system version, unique device identifiers
• Usage Data: App usage patterns, feature usage frequency, crash reports
• Location Information: Only with your explicit permission, used for location-based reminder features

2.2 How We Collect Information

• Information you actively provide
• Technical information automatically collected by the App
• Information collected through third-party services (such as push notification services)

3. Use of Information

We use your information for the following purposes:

• Providing core calendar functionality and services
• Syncing your data across different devices
• Sending important app updates and notifications
• Improving app performance and user experience
• Providing customer support
• Security monitoring and fraud prevention

4. Data Storage

Next Calendar application does not provide data storage services itself. Your data is stored in the following locations:

• Local Device Storage: App data is primarily stored locally on your device
• iCloud Sync: If you enable iCloud sync functionality, data will be stored in Apple's iCloud service
• Other Cloud Storage Services: You may choose to sync to other third-party cloud storage providers that you are aware of

We do not store your data on our own servers. Data security and privacy protection are the responsibility of the respective storage service providers.

5. Information Sharing

We commit to not selling, trading, or renting your personal information. We may only involve information access in the following circumstances:

• With your explicit consent
• To comply with legal requirements
• To protect our or others' rights, property, or safety
• Third-party cloud storage service providers you choose process your data according to their privacy policies

Due to our app's local storage and third-party cloud storage model, we cannot directly access data stored on your device or in third-party services.

6. Data Security

We value data security and employ the following measures:

• In-app data transmission uses encryption technology
• Local device data relies on system-level security protection
• Third-party cloud storage security is guaranteed by respective service providers
• Application permission minimization principle
• Regular security updates

You are responsible for protecting your device security and the security of your chosen cloud storage service accounts.

7. Data Retention and Deletion

Due to our local storage and third-party cloud storage model:

• Local device data: Stored on your device, you can delete it anytime through app settings or by uninstalling the app
• Cloud sync data: Stored in your chosen cloud service, following the data retention policies of the respective service providers
• App usage data: Only retained locally on the device, not uploaded to our servers

7.1 Account Deletion

If you no longer wish to use this application, you can choose to delete your account in the app settings. Account deletion will:

• Clear all local app data on the device
• Clear content related to this app on corresponding cloud storage servers
• Disconnect synchronization with third-party cloud services

Important Notice: Data deletion operations are irreversible and cannot be recovered. Please ensure you have backed up important data before proceeding.

8. Your Rights

You have the following rights regarding your personal information:

• Right to know: Understanding the circumstances of personal information processing
• Right to decide: Deciding whether to consent to the processing of personal information
• Right of access: View and copy your personal information
• Right of rectification: Correct inaccurate or incomplete information
• Right of erasure: Request deletion of your personal information
• Right to restrict processing: Limit the processing of your information
• Right to data portability: Export your data in a structured format
• Right to object: Object to the processing of your personal information

Due to our app's architectural characteristics, most rights can be exercised directly through app settings. Please contact us if you need assistance.

9. Children's Personal Information Protection

We recognize the importance of protecting children's personal information. For children under 13 years of age, we provide special protection:

• Processing children's personal information requires consent from the child's parents or other guardians
• Children's personal information is considered sensitive personal information and follows stricter protection rules
• We have established specific rules for processing children's personal information and publicly disclose these processing rules
• Children's parents or other guardians have the right to access, correct, and delete children's personal information

If you are a parent or guardian of a child and have any questions about the processing of children's personal information, please contact us promptly.

10. Policy Updates

We may update this Privacy Policy from time to time to reflect changes in our services or legal requirements. For significant changes, we will notify you through the following methods:

• Publish update notices in prominent locations within the app
• Notify through app push notifications
• Publish update information on our website

Continued use of our services indicates your acceptance of the updated Privacy Policy. If you do not agree with the updated policy, you may stop using our services.

11. Contact Us

If you have any questions about this Privacy Policy, need to exercise your rights, or have any complaints about our personal information processing activities, please contact us:

• Email: feedback[at]buduan[dot]com
• Website: buduan[dot]com
• Address: Hunan Province, China

We will respond to your request within 15 business days of receiving it. For complex situations, we may need to extend the response period, but it will not exceed 30 business days.

If you are not satisfied with our response, you have the right to file a complaint with relevant regulatory authorities.