Privacy Policy

Last updated: June 05, 2026

Introduction

Apartment Comparison Tool ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our apartment comparison and rent concession calculator service.

Information We Collect

Personal Information

When you create an account, we collect:

  • Email address
  • Name (if provided through Google OAuth)
  • Profile information from your Google account (if using Google Sign-In)

Apartment Data

When you use our service, we store:

  • Apartment names, prices, and square footage
  • Lease terms and discount information
  • User preferences for apartment comparison

Anonymous Users

For users who are not logged in:

  • Apartment data is stored in your browser's sessionStorage
  • This data is NOT sent to our servers
  • Data is automatically deleted when you close your browser tab
  • We do not track or store anonymous user data

Automatically Collected Information

  • IP address and browser type
  • Session cookies for authentication
  • Usage statistics (pages viewed, features used)

How We Use Your Information

We use your information to:

  • Provide and maintain our apartment comparison service
  • Calculate net effective rent and rent concessions
  • Authenticate your account and manage your session
  • Store and retrieve your apartment comparisons
  • Improve our service and user experience
  • Respond to your inquiries and support requests
  • Send you important service updates (if opted in)

Data Storage and Security

Authenticated Users: Your data is stored securely in Google Cloud Firestore with encryption at rest and in transit.

Anonymous Users: Your data is stored locally in your browser and is never transmitted to our servers.

Sessions: We use secure, HTTP-only cookies for session management. Session data expires after 24 hours.

Passwords: All passwords are hashed using PBKDF2-SHA256 with 100,000 iterations and a unique salt per user.

Data Sharing and Disclosure

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

We may share your information only in these limited circumstances:

  • Service Providers: Google Cloud Platform for hosting and database services
  • Legal Requirements: If required by law or to protect our rights
  • Business Transfers: In connection with a merger, acquisition, or sale of assets

Your Rights

You have the right to:

  • Access: Request a copy of your personal data
  • Correction: Update or correct your information
  • Deletion: Request deletion of your account and data
  • Data Portability: Receive your data in a portable format
  • Opt-Out: Unsubscribe from marketing communications

To exercise these rights, please contact us at the email address below.

Cookies and Tracking

We use cookies for:

  • Authentication and session management
  • Remembering your preferences (theme, view settings)
  • CSRF protection

You can control cookies through your browser settings. Disabling cookies may limit functionality.

Third-Party Services

We use the following third-party services:

  • Google OAuth 2.0: For authentication (subject to Google's Privacy Policy)
  • Google Cloud Firestore: For data storage
  • Google App Engine: For hosting

Children's Privacy

Our service is not intended for users under 18 years of age. We do not knowingly collect personal information from children under 18.

International Users

Your information may be transferred to and processed in the United States or other countries where our service providers operate. By using our service, you consent to this transfer.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.

Contact Us

If you have questions about this Privacy Policy, please contact us at:

Email: [email protected]

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