Privacy Policy

Last updated: March 16, 2026. We may update this policy; material changes will be communicated via email when appropriate.

1. What We Collect & Why

We collect the minimum needed to deliver your digest:

• Email address — to send your digests
• Research description — to personalize your paper recommendations
• Delivery preferences — frequency, sources, and paper count
• Agreement records — acceptance timestamp and agreement version for Terms of Service / Privacy assent

We do not sell your data. We do not use advertising, analytics cookies, or tracking pixels.

2. Third-Party Services

We share limited data with these services to operate LitDigest:

• Postmark — transactional email delivery and delivery-event handling (policy)
• Google Gmail — temporary fallback email provider during migration/rollback windows (policy)
• Groq — model inference for research-description processing and ranking (policy)
• hCaptcha — bot verification at signup (policy)
• Railway — infrastructure hosting (policy)

3. Data Retention & Deletion

Your data is retained while your subscription is active. To delete your data, use the unsubscribe link in any digest email. After unsubscribing, your subscription data is deleted within 30 days, although we may retain limited records such as consent/unsubscribe events where reasonably necessary for legal compliance, security, fraud prevention, or dispute resolution.

4. For EU/EEA Users

Legal basis for processing: consent (you voluntarily subscribe). You may withdraw consent at any time by unsubscribing. Our paper ranking is content curation only and has no legal or significant effect on you.

5. Geography, Restrictions, and Compliance

Because privacy, sanctions, export-control, and sector-specific rules vary by jurisdiction, we may restrict or deny service in certain countries, regions, institutions, or regulated contexts. We may use account, delivery, or basic technical information to help enforce those restrictions and protect the service.