Privacy Policy
ZzzSweet ("we", "our", or "us") takes your privacy seriously. This Privacy Policy explains how we collect, use, store, and protect your personal information. By using our services, you agree to the terms of this policy.
1. Information We Collect
To provide our services, we collect the following information:
- Account Information: Email address and password (encrypted) provided during registration
- Trusted Email: The email address you designate to receive daily unlock passwords
- Settings: Your lock time settings, timezone, motivational quotes, and other preferences
- Device Information: Device type and operating system version to provide compatible services
- Sleep Diary and Photos: Diary entries and photos you voluntarily record, stored on our servers, visible only to your own account, used for cross-device access and recovery
- Payment and Order Information: When you purchase paid features, we store the order number, product name, amount, payment channel (WeChat Pay / Alipay), channel transaction ID, payment time, and redemption code usage records. Payment itself is completed on the side of WeChat Pay, Alipay, and the aggregated payment provider; we do not collect, access, or have any way to obtain your payment account or password
- Usage Analytics: In-app usage events (such as registration, login, feature toggles, page visits) for statistics and product improvement; website analytics are handled by our self-hosted first-party system
- Diagnostics: Runtime logs collected only when you actively tap "Upload diagnostic data", used to troubleshoot malfunctions
2. Use of the Accessibility Service (Prominent Disclosure)
The ZzzSweet Android app requests the system Accessibility Service permission. We prominently disclose its purpose and boundaries here:
- Purpose 1 · Lock-screen enforcement: During your scheduled lock period, we monitor the package name of the foreground app and bring non-whitelisted apps back to the lock screen, so the lock stays effective
- Purpose 2 · Short-video scroll prevention: We count screen-scroll events and foreground dwell time to recognize the behavior pattern of "continuously scrolling short videos", and trigger a forced lock when the threshold is reached
Our commitment: the Accessibility Service does not read your chat messages, and does not read or upload the actual contents displayed on your screen; behavioral statistics are computed locally on your phone; information obtained through the Accessibility Service is never used for any purpose other than the above.
3. How We Use Your Information
The information we collect is used only for the following purposes:
- Providing the scheduled screen lock and short-video prevention services
- Sending daily unlock passwords to your trusted email
- Syncing your settings and diary to the cloud
- Processing payments, verifying orders, and validating trial/unlock eligibility for paid features
- Improving and optimizing our services
- Sending important service notifications (such as password resets)
4. Data Storage and Security
We take the following measures to protect your information:
- All passwords are encrypted using industry-standard algorithms (bcrypt)
- Data transmission is encrypted using HTTPS
- Servers are deployed on secure cloud platforms
- Regular security audits and updates are performed
Your data is stored on servers located in secure data centers.
5. Information Sharing
We do not sell, rent, or otherwise share your personal information with third parties, except when:
- We have your explicit consent
- Required by law or regulations
- Necessary to protect our legal rights (such as preventing fraud)
Payments for paid features are processed by third-party payment providers (WeChat Pay, Alipay, and the aggregated payment provider). We pass them only the order information necessary to complete the transaction (order number, amount, product name) and no other personal information.
6. Your Rights
You have the following rights regarding your personal information:
- Access: View your account information and settings at any time
- Correction: Update inaccurate personal information
- Deletion: Request deletion of your account and all related data (including diary entries and photos; excluding order records we are legally required to retain)
- Export: Request export of your personal data
To exercise these rights, please email drl330330@gmail.com. We will process your request within 15 business days.
7. Cookies and Similar Technologies
Our website and app may use cookies or similar technologies to:
- Keep you logged in
- Remember your preferences
- Analyze service usage to improve experience (website analytics are handled by our self-hosted first-party system; no third-party cross-site tracking)
8. Children's Privacy
Our services are intended for users aged 18 and above. If we discover that we have collected personal information from a minor, we will delete it immediately.
9. Policy Updates
We may update this Privacy Policy from time to time. Updated policies will be posted on this page, and significant changes will be communicated via email or in-app notification.
10. Contact Us
If you have any questions about this Privacy Policy, please contact us:
- Email: drl330330@gmail.com