Privacy Policy

1. Introduction

Capytime is developed and operated by Shanghai Main Consulting Management Co., Ltd. (hereinafter referred to as "we"). We understand the importance of your personal information and will protect the security of your personal information in accordance with laws and regulations. This Privacy Policy explains how we collect, use, store, and protect your personal information.

2. Information Collection

2.1 Information You Provide

• Account Information: Phone number, email address, username provided during registration
• Capsule Content: Text, images, videos, audio, and other content in time capsules you create
• Location Information: If you use the location unlock feature, we collect relevant location data

2.2 Automatically Collected Information

• Device Information: Device model, operating system version, device identifiers, etc.
• Log Information: App usage records, crash reports, etc.

2.3 Device Identifier Information (Android)

To provide push notification services, advertising services, and ensure account security, we may collect the following device identifier information:

• Android ID: Used to uniquely identify devices, ensuring accurate message delivery and account security
• MAC Address: Used for network status detection and device identification to ensure service stability
• Device Serial Number (SN): Used for device uniqueness identification and account security protection
• BSSID: Used for network environment identification and push notification optimization
• SSID: Used for network environment identification and service stability
• Sensor Information: Only used to detect device motion status (such as shake interactions), not continuously collected

The above information is only collected after you agree to this Privacy Policy and is only used for the purposes stated above.

2.4 App Auto-Start (Android)

This app does not automatically start after device restart. Push notification services are only established after you actively open the app.

The app may be awakened in the following scenarios:

• Push Message Trigger: When the server sends you a push notification, the app will be awakened to process and display the notification content

The above behavior is solely for ensuring the normal operation of push notification services and does not perform any other operations or data collection in the background.

2.5 Third-Party SDK Information Collection

To provide better services, we have integrated the following third-party SDKs (information based on National SDK Management Service Platform registration):

3. Information Use

The information we collect is used to:

• Provide, maintain, and improve our services
• Verify your identity and ensure account security
• Send you service notifications and updates
• Analyze service usage and optimize user experience
• Comply with legal requirements

4. Information Storage and Protection

4.1 Timelock Encryption

Your capsule content is encrypted using timelock encryption technology based on drand distributed randomness beacon. Before your set unlock time arrives, no one (including us) can decrypt the capsule content. This is a cryptographic mathematical guarantee, not just access control.

4.2 Transmission Security

All data transmission uses TLS/SSL encryption.

4.3 Storage Security

We use AES-256 encryption for storing sensitive data and conduct regular security audits.

4.4 Data Location

Your data is stored on cloud servers that comply with local regulatory requirements.

5. Information Sharing

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

• With your explicit consent
• With affiliated companies (if any)
• With service providers (such as cloud storage services), who can only process data under our instructions
• As required by laws and regulations

6. Your Rights

You have the following rights:

• Right to Access: View the personal information we have collected about you
• Right to Rectification: Correct inaccurate personal information
• Right to Erasure: Request deletion of your personal information in certain circumstances
• Right to Data Portability: Obtain a copy of your data
• Right to Account Deletion: You can delete your account at any time

Please note: Due to the nature of timelock encryption, encrypted capsule content cannot be deleted or modified before unlock.

6.1 Account Deletion

You can delete your account through the following method:

If you encounter any issues during the deletion process, you can also contact us at [email protected] for assistance.

7. Protection of Minors

Our services are primarily intended for adults. If you are a minor, please read this policy with a guardian and use our services with the consent of your guardian.

8. Policy Updates

We may update this Privacy Policy from time to time. Updated policies will be published in the app, and significant changes will be notified through in-app notifications.

9. Contact Us

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

Email: [email protected]