Leank is a health tracking app and does not provide medical advice, diagnosis, or treatment.
Important Notice:
- This app is intended for health and wellness purposes only and is not a medical device or diagnostic tool
- Information provided in this app is based on general health principles and does not constitute personalized medical advice
- Consult a qualified healthcare professional before starting any fasting program
- If you have any health concerns or conditions, please seek advice from a doctor
- We are not liable for any health issues arising from the use of this app
Consult a Doctor If You:
- Have diabetes, hypoglycemia, or other metabolic conditions
- Have a history of eating disorders
- Are pregnant, nursing, or trying to conceive
- Are under 18 years of age
- Are taking prescription medications
- Have heart disease, high blood pressure, or other chronic conditions
- Have a compromised immune system
Emergency: If you experience fainting, severe dizziness, chest pain, or other serious symptoms while using this app, stop fasting immediately and seek medical attention.
About This App
Leank is a completely offline, zero data collection local fasting tracker app. We are privacy-first by design - your data is stored entirely on your own device, accessible only to you. We collect nothing, transmit nothing, and sell nothing.
What We Collect
As a completely offline app, we collect no data.
The app only stores information you actively enter:
- Fasting Records: Start/end times, fasting type, duration
- App Settings: Language preference, notification settings, fasting plan
- User Profile: Nickname, age, weight (optional)
All data is stored locally on your device. We cannot access it.
How We Use Your Data
As a local app, your data is fully under your control. The app simply provides these features:
- Help you record fasting times and progress
- Save your preference settings
- Display your data in the history tab
- Calculate fasting duration and goal completion
We don't analyze, monitor, or judge your data. This is your personal tracking tool.
Where Your Data Lives
All your data is stored locally on your device in the app's sandbox.
- Storage Method: Device local storage (SharedPreferences)
- Sensitive Data Encryption: Nickname, age, and weight are stored with system-level encryption (iOS Keychain/Android Keystore)
- Regular Data: Fasting records and app settings use standard local storage
- Cloud Services: No cloud servers used, we cannot access your data
- App Uninstall: Uninstalling the app permanently deletes all data
- Device Backup: If you enable device backup, data may be included in backups
We Never Share Your Data
We do not sell, rent, or share your data with anyone. Your data never leaves your device, so there's nothing to share.
- No Third-Party Sharing: We don't share data with any third parties
- No Ad Tracking: We don't use data for ad targeting
- No Data Analytics: We don't analyze or sell user data
Your Rights
You have full control over your data:
- View: See all your data in the History tab
- Delete: Use "Clear All Data" in Settings to delete everything
- Data Access: Data is stored on your device, always viewable in the app
- Uninstall: Uninstalling the app permanently deletes all data
- Device Backup: Use your device's backup feature to backup your data
Children's Privacy
This app is not intended for children under 13. Since we collect no data whatsoever, even if a child uses this app, no personal information will be collected. Parents should still monitor children's use of this app.
Data Security
While data is only stored locally, we still recommend:
- Device Lock: Set a password or biometric lock on your device
- System Updates: Keep your device system updated for the latest security patches
- Backup Data: Regularly backup your device to prevent data loss
- Public Devices: Do not use this app on public or shared devices
Policy Changes
We may update this privacy policy from time to time. For significant changes, we will notify you within the app. We recommend reviewing this policy regularly.
- Notification Method: In-app notification
- Effective Date: Changes take effect immediately upon posting
- Version History: Last updated date shown at the top
Legal Notice
This privacy policy is governed by the following laws:
- China: "Personal Information Protection Law" (Effective November 1, 2021)
- European Union: "General Data Protection Regulation" (Effective May 25, 2018)
- United States: "California Consumer Privacy Act" (CCPA, Effective January 1, 2020)
Applicable Law: This app is developed by Chinese developers and primarily targets users in China. For users in different regions, local privacy protection laws apply.
Dispute Resolution: Disputes arising from this policy shall be resolved through friendly negotiation. If negotiation fails, either party may file a lawsuit in the people's court where the developer is located.
If any provision of this policy is found to be unenforceable, the remaining provisions remain in full force.
Contact Us
If you have questions about this app or your privacy, please contact us through:
- App Store: Leave a message or feedback on the Google Play Store page
- In-App: Use the app store review feature to contact us
We will respond to your inquiries as soon as possible.