Privacy Policy

Effective Date: March 1, 2026 · Last Updated: March 4, 2026

1. Introduction

Detailed In Design, LLC (“Company,” “we,” “us,” or “our”), an Illinois Limited Liability Company, operates Dataset Reality Check, a desktop application for pre-model epistemic dataset analysis. This Privacy Policy explains what information we collect, how we use it, and your rights regarding that information.

This policy applies to:

• The Dataset Reality Check desktop application (Windows, macOS, Linux)
• The Dataset Reality Check product website
• The customer portal at portal.detailedindesign.com
• All interactions with our support channels

2. Our Core Privacy Principle: Local-Only Processing

Dataset Reality Check is architected as a local-first desktop application. When you load a CSV, TSV, or Parquet file (up to 500 MB), all processing - including drift detection, regime shift analysis, feature fragility assessment, and assumption violation checks - occurs entirely within the application on your hardware. At no point does the application upload, stream, or transmit any portion of your dataset over a network connection.

3. What We Do NOT Collect

To be absolutely clear, we do not collect:

• Your dataset contents or any portion thereof
• Column names, schema information, or metadata from your files
• Analysis results, reports, or diagnostic outputs
• File names or file paths from your local filesystem
• Screenshots or screen recordings of the application
• Keystrokes or user input within the analysis interface

4. Information We Collect

4.1 License Heartbeat

The application performs a periodic license verification request (“heartbeat”) to confirm your subscription status. This heartbeat transmits only:

• Your license key (a unique identifier tied to your subscription)
• Application version number
• Operating system type (e.g., Windows, macOS, Linux)
• A timestamp of the request

The heartbeat does not transmit any dataset information, usage patterns, analysis results, or personally identifiable information beyond your license key.

4.2 Account Information

When you create an account through our customer portal, we collect:

• Full name
• Email address
• Company name (optional)
• Password (stored as a bcrypt hash; we never store plaintext passwords)

4.3 Payment Information

Payment processing is handled exclusively by Stripe. We do not store credit card numbers, CVVs, or full payment credentials on our servers. We retain only:

• Billing name and address
• Payment method type (e.g., Visa ending in 1234)
• Transaction history and invoice records

4.4 Support Data

If you contact our support team, we collect the content of your correspondence (email messages, attachments you choose to send). We will never ask you to send your datasets for troubleshooting.

4.5 Website Analytics

Our product website collects standard web server logs including IP address, browser type, referring URL, and pages visited. We do not use third-party analytics trackers, advertising pixels, or cross-site tracking cookies.

5. How We Use Your Information

• License Verification: To validate your subscription and enable application access.
• Account Management: To maintain your account, process payments, and manage your subscription.
• Customer Support: To respond to your inquiries and resolve issues.
• Service Communications: To send transactional messages including license expiration notices, payment confirmations, and critical security updates. We do not send marketing emails without your explicit opt-in consent.
• Legal Compliance: To comply with applicable laws, regulations, and legal processes.

6. Offline and Air-Gap Operation

Dataset Reality Check supports offline and air-gapped operation. If your environment requires no network connectivity:

• Offline activation is available for all subscription tiers.
• The license heartbeat can be disabled with an offline activation key.
• All analysis features function identically without network access.
• Updates can be applied manually via downloadable packages.

When operating in offline mode, zero data of any kind is transmitted from the application.

7. Data Sharing and Third Parties

We share information with the following third parties only:

• Stripe (Payment Processor): Billing name, email, and payment details for subscription processing.
• Cloudflare (CDN / Security): IP addresses and request metadata for website delivery and DDoS protection.

We do not:

• Sell personal data to any third party
• Use personal data for targeted advertising
• Share data with data brokers
• Profile users for marketing purposes

8. Data Retention

• Account Information: Retained for the duration of your active account plus 30 days after account deletion.
• Payment Records: Retained for 7 years for tax and legal compliance.
• License Heartbeat Logs: Retained for 90 days, then permanently deleted.
• Support Correspondence: Retained for the duration of your active account plus 30 days after account deletion.
• Website Logs: Retained for 90 days.

Upon account deletion, a 30-day grace period allows restoration. After 30 days, all personal data is permanently deleted.

9. Data Security

We implement the following security measures:

• Encryption in Transit: All communications between the application and our license server use TLS 1.2 or higher.
• Encryption at Rest: All stored data on our servers is encrypted with AES-256.
• Password Security: Passwords are hashed with bcrypt using per-user salts.
• Access Controls: Internal access to customer data follows the principle of least privilege.
• Local Data Isolation: The application stores configuration and preferences locally. No dataset content is ever written to application logs or temporary files outside the user’s control.

10. Cookies

Our product website and customer portal use only essential cookies:

• Session Cookie: HttpOnly, Secure, SameSite=Lax - maintains your authenticated session on the customer portal.

We do not use analytics cookies, advertising cookies, tracking pixels, or any third-party tracking technologies.

11. Your Rights

We extend the following rights to all users regardless of jurisdiction:

• Right to Access: Confirm whether your data is being processed and obtain a copy of your personal data.
• Right to Correct: Correct inaccurate personal data through the customer portal or by contacting us.
• Right to Delete: Request deletion of your personal data, subject to legal retention requirements.
• Right to Data Portability: Obtain your personal data in a portable format (JSON export).
• Right to Opt Out: Opt out of data sales (we do not sell data), targeted advertising (we do not advertise), and profiling (we do not profile).
• Right to Non-Discrimination: We will not discriminate against you for exercising any of your rights.

12. How to Exercise Your Rights

You may submit privacy rights requests through:

• Email: privacy@detailedindesign.com with subject line “Privacy Rights Request”
• Portal: Account Settings > Privacy within the customer portal

We will verify your identity and respond within 45 calendar days. If an extension is needed, we will notify you within that period, with total response time not exceeding 90 days.

13. Children’s Privacy

Dataset Reality Check is a professional data analysis tool designed for use by data scientists, analysts, and ML engineers. It is not directed at individuals under the age of 16. We do not knowingly collect personal data from children under 16.

14. International Data Transfers

Since your datasets are processed entirely locally, no dataset-related data crosses any border. Account and billing information is stored on servers located in the United States. Users accessing the customer portal from outside the United States consent to transfer of account data to the US by using the Service.

15. Changes to This Policy

Material Changes: We will provide at least 30 days’ notice before any material change becomes effective, via email to your account address.

Non-Material Changes: Formatting corrections and clarifications will be reflected by updating the “Last Updated” date.

Continued use of the application or customer portal after changes become effective constitutes acceptance.

16. Contact Information

Detailed In Design, LLC
An Illinois Limited Liability Company

Privacy Inquiries: privacy@detailedindesign.com
Website: detailedindesign.com

© 2024–2026 Detailed In Design, LLC. All rights reserved.