Privacy Policy

Last Updated: December 19, 2024

1. Introduction

Chart Ding ("we," "us," or "the App") respects your privacy and is committed to protecting your personal information. This Privacy Policy explains how we collect, use, store, and protect your data when you use our trading alarm application.

2. Information We Collect

2.1 Account Information

When you create an account, we collect:

Email address - Used for account authentication and important notifications
Name (optional) - For personalization of your experience
Password - Securely hashed and stored via Supabase authentication

2.2 Usage Data

We automatically collect information about how you use the app:

Alarm settings and configurations - To provide cloud sync functionality
Clock preferences - Timezone, display settings, and customizations
Subscription tier - To enforce feature limits (Free/Premium/Pro)
Device information - Device type, browser, operating system for compatibility
App interactions - Feature usage to improve the app experience

2.3 Payment Information

Payment processing is handled by Stripe. We do not store your credit card information. Stripe collects payment details, billing address, and transaction history according to their Privacy Policy.

3. How We Use Your Information

We use the collected information for:

Service delivery - Providing alarm functionality, cloud sync, and multi-device access
Account management - Authentication, password resets, and account recovery
Subscription management - Processing upgrades, managing billing, and enforcing tier limits
App improvement - Analyzing usage patterns to enhance features and fix bugs
Customer support - Responding to inquiries and troubleshooting issues
Security - Preventing fraud, abuse, and unauthorized access

4. Data Storage and Security

4.1 Where We Store Data

Supabase - Authentication, user settings, and alarm configurations (encrypted in transit via HTTPS)
Local storage - Offline functionality and caching (stored on your device only)
Stripe - Payment and subscription data (PCI-compliant secure storage)

4.2 Security Measures

All data transmitted between your device and our servers is encrypted using HTTPS/TLS
Passwords are securely hashed using industry-standard encryption
We use Supabase's Row Level Security (RLS) to ensure users can only access their own data
Regular security audits and updates to prevent vulnerabilities

5. Data Sharing and Third Parties

We do NOT sell, rent, or trade your personal information. We only share data with:

Supabase - Cloud database and authentication provider
Stripe - Payment processing for subscriptions
StatCounter - Anonymous analytics to measure app traffic (no personally identifiable information)

These third parties are contractually obligated to protect your data and use it only for the services they provide to us.

6. Your Rights and Choices

You have the right to:

Access your data - Request a copy of all personal information we hold
Update your data - Modify account details, alarm settings, and preferences in-app
Delete your data - Request complete account deletion via the app settings
Opt out of emails - Unsubscribe from marketing emails (service emails may still be sent)
Export your data - Download your alarm configurations and settings

6.1 How to Delete Your Account

Open Chart Ding app or visit www.chartding.com
Go to Settings → Account Management
Click "Delete Account"
Confirm deletion (this action is permanent and cannot be undone)

Upon deletion, all your data (alarms, settings, account information) will be permanently removed from our servers within 30 days.

7. Data Retention

Active accounts - Data retained as long as your account is active
Deleted accounts - Data purged within 30 days of deletion request
Payment records - Retained for 7 years for tax and legal compliance (via Stripe)
Anonymous analytics - Aggregated, non-identifiable data may be retained indefinitely

8. Children's Privacy

Chart Ding is not intended for users under 18 years of age. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us immediately at support@chartding.com, and we will delete it.

9. Cookies and Tracking

We use minimal tracking technologies:

Essential cookies - Required for authentication and session management
Local storage - Stores app settings and alarm configurations for offline use
Analytics - StatCounter for anonymous traffic measurement (no personal data)

We do NOT use third-party advertising cookies or sell data to advertisers.

10. International Users

Chart Ding is hosted on servers located in the United States. By using the app, you consent to the transfer of your information to the U.S. and processing according to this Privacy Policy.

11. Changes to This Privacy Policy

We may update this Privacy Policy periodically. Changes will be posted on this page with an updated "Last Updated" date. Significant changes will be communicated via email or in-app notification. Continued use of Chart Ding after changes constitutes acceptance of the updated policy.

12. California Privacy Rights (CCPA)

If you are a California resident, you have additional rights under the California Consumer Privacy Act (CCPA):

Right to know what personal information is collected
Right to delete personal information
Right to opt-out of data sale (we do NOT sell your data)
Right to non-discrimination for exercising your privacy rights

13. GDPR Compliance (EU Users)

If you are in the European Union, you have rights under the General Data Protection Regulation (GDPR):

Right to access, rectify, and erase your data
Right to data portability
Right to restrict or object to processing
Right to withdraw consent at any time
Right to lodge a complaint with a supervisory authority

14. Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or your personal data, contact us:

Email: support@chartding.com
Website: www.chartding.com

By using Chart Ding, you acknowledge that you have read and understood this Privacy Policy and agree to its terms.