Privacy Policy

1. Introduction

Welcome to Dentza's Privacy Policy. This document explains how we collect, use, disclose, and protect your personal information when you use our social media platform designed for dental professionals.

By using Dentza, you agree to the collection and use of information in accordance with this policy. We are committed to protecting your privacy and ensuring the security of your personal information.

2. Information We Collect

2.1 Information You Provide to Us

Account Information

• Email address - Required for account creation and communication
• Password - Securely hashed and stored for authentication
• Name - Your full name for profile display
• Username - Unique identifier for your profile
• Phone number - Optional contact information
• Birth date - For age verification (must be 18+)
• Gender - Optional demographic information
• Professional community - Your dental specialty area
• Bio - Optional professional description

Profile Information

• Profile photo - Uploaded and stored via Cloudinary
• Cover photo - Uploaded and stored via Cloudinary
• Professional information - Community/specialty details

Content You Create

• Posts - Text content you share
• Images and videos - Media files uploaded to posts
• Comments and replies - Responses to posts
• Likes and interactions - Your engagement with content

Chat and Messaging Information

• Messages - Text, image, and file messages you send and receive
• Conversation data - Chat conversations, participant lists, and conversation metadata
• Message metadata - File attachments, message types, and timestamps
• Typing indicators - Real-time typing status and activity
• Online status - Your online/offline status and last seen information
• Message status - Read receipts, delivery confirmations, and message status tracking

Marketplace Information

• Listing details - Product descriptions, prices, and specifications
• Contact information - Information shared for marketplace communications
• Transaction discussions - Messages and communications related to marketplace items
• Favorites and saved listings - Items you mark as favorites
• Search preferences - Marketplace search history and preferences

2.2 Information We Collect Automatically

Usage Information

• Activity logs - Posts, comments, likes, follows
• Device information - Device type, operating system, browser
• IP address - For security and analytics
• Session data - Login times, session duration
• Last active timestamp - When you were last active on the platform
• Chat activity - Message sending patterns, conversation participation, and chat usage statistics
• Real-time connection data - WebSocket connections, typing activity, and online presence

2.3 Information from Third Parties

Authentication Services

When you sign in with Google, we receive:

• Email address
• Name
• Google account ID
• Profile picture (optional)

Push Notifications

• Firebase Cloud Messaging (FCM) tokens - For mobile push notifications
• Device registration information - Device ID, type, and name

Real-time Communication Services

• Firebase Firestore data - Real-time message synchronization and typing indicators
• WebSocket connection data - Real-time communication session information
• Message delivery status - Read receipts and delivery confirmations

3. How We Use Your Information

3.1 Providing Our Services

• Account management - Creating and maintaining your account
• Authentication - Verifying your identity and managing sessions
• Content delivery - Displaying posts, comments, and media
• Social features - Following relationships, notifications, activity feeds
• Chat and messaging services - Facilitating real-time communication between users
• Marketplace services - Facilitating connections between buyers and sellers
• Communication - Sending important updates and notifications

3.2 Improving Our Services

• Analytics - Understanding usage patterns to improve the platform
• Performance monitoring - Identifying and fixing technical issues
• Feature development - Developing new features based on user needs
• Security - Detecting and preventing fraud and abuse

4. How We Share Your Information

4.1 With Other Users

• Public profile information - Name, username, bio, profile photo
• Public posts and comments - Content you choose to share publicly
• Activity information - Likes, follows, and other public activities

4.2 With Service Providers

• Cloudinary - For image and video storage and processing
• AWS S3 - For file storage and backup
• Firebase - For push notifications and analytics
• Email services - For sending transactional emails
• Database services - For data storage and management

5. Data Storage and Security

5.1 Data Storage

• Primary storage - Secure cloud databases with encryption
• Media storage - Cloudinary for images and videos
• Backup storage - Regular encrypted backups
• Geographic location - Data stored in secure, compliant data centers

5.2 Security Measures

• Encryption - Data encrypted in transit and at rest
• Access controls - Strict access controls and authentication
• Security monitoring - Continuous monitoring for threats
• Regular audits - Security assessments and penetration testing
• Employee training - Security awareness training for staff

6. Your Rights and Choices

6.1 Access and Control

• View your data - Access your personal information
• Update information - Modify your profile and account details
• Delete content - Remove posts, comments, and media
• Account deletion - Request complete account deletion

6.2 Privacy Settings

• Profile visibility - Control who can see your profile
• Content privacy - Manage who can see your posts
• Notification preferences - Choose what notifications to receive
• Data sharing - Control third-party data sharing

7. Third-Party Services

Our platform integrates with third-party services that have their own privacy policies:

• Google OAuth - For authentication
• Cloudinary - For media storage
• AWS S3 - For file storage
• Firebase - For notifications
• Email services - For communications

8. Children's Privacy

Dentza is not intended for children under 18 years of age. We do not knowingly collect personal information from children under 18. If we become aware that we have collected such information, we will take steps to delete it promptly.

9. Chat and Messaging Services

9.1 Chat Functionality

Dentza provides real-time chat and messaging features that allow dental professionals to communicate directly with each other. This service includes both direct messages and group conversations, designed to facilitate professional networking and communication within the dental community.

9.2 Chat Data Collection

When using the chat feature, we collect and process:

• Message content - Text, images, and files you send and receive
• Conversation metadata - Participant lists, conversation types, and timestamps
• Real-time activity - Typing indicators, online status, and message delivery status
• Message attachments - Files, images, and other media shared in conversations
• Communication patterns - Message frequency, conversation participation, and usage statistics

9.3 Chat Data Usage

We use chat data to:

• Facilitate communication - Enable real-time messaging between users
• Provide notifications - Send message alerts and typing indicators
• Maintain conversation history - Store and retrieve message history
• Ensure security - Monitor for inappropriate content and abuse
• Improve service quality - Analyze usage patterns to enhance chat functionality

9.4 Chat Data Storage and Security

Our chat system uses a hybrid storage approach:

• PostgreSQL - Permanent storage of all messages and conversation data
• Firebase Firestore - Real-time synchronization with limited message retention (50 most recent messages)
• Encryption - All chat data is encrypted in transit and at rest
• Access controls - Messages are only accessible to conversation participants

9.5 Chat Privacy and Control

You have control over your chat experience:

• Message deletion - Delete individual messages or entire conversations
• Block users - Prevent specific users from messaging you
• Privacy settings - Control who can see your online status
• Notification preferences - Manage chat-related notifications
• Data export - Request a copy of your chat history

9.6 Chat Limitations and Responsibilities

10. Marketplace Services

10.1 Marketplace Functionality

Dentza provides a marketplace feature that allows dental professionals to connect and discuss items for sale or purchase. This service is designed to facilitate professional networking and communication within the dental community.

9.2 Marketplace Data Collection

When using the marketplace feature, we may collect:

• Listing information - Product details, descriptions, and specifications you provide
• Communication data - Messages and discussions related to marketplace items
• Search and browsing data - Your marketplace activity and preferences
• Contact information - Information you choose to share for marketplace communications

9.3 Marketplace Data Usage

We use marketplace data to:

• Facilitate connections - Help buyers and sellers connect and communicate
• Improve search functionality - Enhance marketplace search and discovery features
• Provide notifications - Send relevant marketplace updates and notifications
• Maintain platform integrity - Monitor and moderate marketplace content

9.4 Marketplace Limitations

9.5 User Responsibility

Users engaging in marketplace activities are solely responsible for:

• Verifying the authenticity and condition of items
• Conducting their own due diligence
• Arranging payment and delivery methods
• Resolving any disputes that may arise
• Complying with applicable laws and regulations

10. Third-Party Services

Our platform integrates with third-party services that have their own privacy policies:

• Google OAuth - For authentication
• Cloudinary - For media storage
• AWS S3 - For file storage
• Firebase - For notifications
• Email services - For communications

11. International Compliance

We comply with applicable data protection laws, including:

• GDPR - For European users
• CCPA - For California residents
• Other local laws - As applicable in your jurisdiction

12. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes through email notification, in-app notifications, and updates to the "Last Updated" date.

13. Contact Information

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