Privacy Policy

Last Updated: January 2025

At SugarLock, operated by Rudeus LLC ("we," "our," or "us"), we take your privacy seriously. This Privacy Policy explains how we collect, use, and protect your information when you use our mobile application SugarLock (the "App").

Most importantly: All user data is stored locally on your device. SugarLock does not have servers that store your personal data. Your information never leaves your device unless you explicitly choose to share it.

1. About SugarLock

SugarLock is a gamified digital wellness app that helps users manage screen time by connecting app usage to physical activity. Users voluntarily lock their own apps and unlock them by walking and completing quests. SugarLock is designed as a self-control tool for adults managing their own screen time, not for parental control or monitoring others.

2. Information We Collect

2.1 HealthKit Data (Step Count Only)

With your explicit permission, SugarLock accesses your step count from Apple HealthKit:

What we access: Step count data ONLY (no other health data)
Why: To track quest progress and unlock apps when you reach step goals
Storage: Local device only, never sent to servers
User Control: You can revoke HealthKit permissions at any time through your device's Settings app
Important: We only read data from HealthKit. We do not write data to HealthKit.

2.2 Food Photos (Optional - Food Quest Mode Only)

If you choose to use Food Quest mode, you may take photos of your meals:

What: Food photos taken by you
Why: To create food quests and visually track meals
Storage: Local device only, saved to your device's photo library
Processing: Food recognition runs on-device using CoreML (Food101 model) for categorization only
No server upload: Photos never leave your device
User Control: Camera access is optional. You can delete photos at any time through your device's photo library

2.3 App Selection Data

To provide app blocking functionality, SugarLock needs to know which apps you choose to lock:

What: Which apps you select to lock
Why: To enforce blocking via iOS Screen Time API
Storage: Local device only via iOS Screen Time framework
User Control: You have full control over which apps to lock or unlock
Important: We do not access the content of blocked apps or your usage within them

2.4 Quest and Settings Data

To maintain app functionality between sessions, SugarLock stores:

What: Quest history, step goals, app names, emergency override phrase, preferences
Why: To maintain app functionality and remember your settings
Storage: Local device only (UserDefaults, CoreData)
No server: All data remains on your device

2.5 Subscription Status

SugarLock offers premium features through subscriptions:

What: Premium/trial status managed by Apple StoreKit
Why: To unlock premium features
Handled by: Apple's App Store (we don't store payment information)
User Control: Manage subscriptions through iOS Settings > Apple ID > Subscriptions

2.6 Usage Analytics (If Implemented)

We may collect anonymous usage data to improve the app:

What: Crash reports for debugging, anonymous usage statistics
What we don't collect: NO personal data, NO identifiable information
Purpose: To fix bugs and improve app stability

3. What We Do NOT Collect

To be clear, SugarLock does NOT collect:

❌ Glucose/blood sugar data (app doesn't use this)
❌ Food nutrition analysis (only visual recognition for categorization)
❌ Location data
❌ Contacts, messages, or app content
❌ Personal health information beyond step count
❌ Payment information (handled by Apple)
❌ User accounts or email addresses (no account system)

4. How We Use Your Information

Since all data is stored locally on your device, we use your information solely to:

Provide Core Functionality: Enable app blocking, step tracking, and quest completion features
Process Food Photos (Optional): Run on-device food recognition for Food Quest categorization
Track Progress: Display your quest history and progress within the app
Improve the App: Use anonymous crash reports and usage statistics to fix bugs

5. Data Storage and Security

5.1 Local-Only Storage

All user data is stored locally on your device. SugarLock does not have servers that store your personal data. This means:

Your step count data stays on your device
Your food photos (if any) stay in your device's photo library
Your quest history and settings stay on your device
Your app selection preferences stay on your device

5.2 Data Security

Since data is stored locally, security is managed by:

iOS device encryption and security features
Apple's HealthKit privacy framework
iOS Screen Time API security
Your device's passcode/biometric authentication

6. HealthKit Integration

SugarLock integrates with Apple HealthKit solely to track your step count for quest progress:

What we access: Step count data ONLY
Why: To verify quest completion and unlock apps when step goals are met
Storage: We only read step data. Your health data is never shared with third parties and remains private on your device
User Control: You can revoke HealthKit permissions at any time through iOS Settings > Privacy & Security > Health > SugarLock

7. Screen Time API

SugarLock uses Apple's Screen Time API to enable users to set self-imposed app restrictions:

Purpose: This is a personal wellness tool, NOT for parental control or monitoring others
User Control: Users voluntarily lock their own apps
What we access: Only the apps you select to lock
What we don't access: We do not access the content of blocked apps or your usage within them
User Control: You can disable restrictions through iOS Settings if needed

8. Camera and Photo Access

Camera access is optional and only used for Food Quest mode:

When used: Only if you choose to use Food Quest mode
What happens: Photos are stored in your device's photo library
Processing: Food recognition runs on-device using CoreML for categorization only
No upload: Photos are never uploaded to servers
User Control: You can revoke camera access at any time through iOS Settings

9. Data Sharing and Disclosure

We do not sell, rent, or trade your personal information to third parties.

Since all data is stored locally on your device, we don't have access to share it. The only circumstances where information might be shared are:

Legal Requirements: If required by law, court order, or government regulation (though we have no data to provide since it's all stored locally)
Anonymous Analytics: If we use analytics services, only anonymous, non-identifiable data would be shared

10. Your Rights and Choices

You have complete control over your data:

Access: All your data is on your device - you can view it anytime in the app
Deletion: Delete all SugarLock data by deleting the app from your device
Revoke Permissions: Revoke HealthKit, Camera, or Screen Time permissions anytime through iOS Settings
Control App Selection: Choose which apps to lock or unlock at any time
Delete Photos: Delete food photos anytime through your device's photo library

Since all data is stored locally on your device, you can delete all SugarLock data by deleting the app.

11. Children's Privacy

SugarLock is intended for users 13 years and older. We do not knowingly collect information from children under 13. Since the app doesn't require accounts and all data is stored locally, we don't have a way to identify users' ages, but we recommend that users under 18 have parental permission to use the app.

12. International Data Transfers

Since all data is stored locally on your device and never transmitted to servers, there are no international data transfers. Your data stays on your device, wherever you are in the world.

13. Data Retention

Since all data is stored locally on your device:

Data persists as long as the app is installed on your device
You can delete all data by deleting the app
We don't retain any data after you delete the app

14. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by:

Posting the new Privacy Policy on our website
Updating the "Last Updated" date
Including a notice in the app (if significant changes occur)

Your continued use of the App after changes become effective constitutes acceptance of the updated Privacy Policy.

15. Medical Disclaimer

Important: SugarLock is NOT a medical device and is NOT intended to diagnose, treat, cure, or prevent any disease. The App provides general wellness tools for digital wellness and physical activity. Walking recommendations are for general wellness only. Always consult with a healthcare professional for medical advice, diagnosis, or treatment.

16. Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us:

Rudeus LLC
Privacy Email: privacy@rudeus.io
General Support: support@rudeus.io
Website: https://rudeus.io/sugarlock/

We will respond to your inquiry within 30 days.