Privacy Policy
Last Updated: March 20, 2026
This Privacy Policy describes how Edge Case Software, LLC ("we," "us," or "our") handles information in connection with Letheca (the "Service"). We built Letheca with privacy as a core design principle. Our goal is simple: collect as little as possible, retain as little as possible, and be transparent about both.
1. Our Privacy Philosophy
Letheca is anonymous by design. The Service does not require registration, login, or any personally identifiable information to use. We do not build profiles of our users. We do not sell data. We do not run targeted advertising.
2. Information We Do Not Collect
Unlike most social platforms, Letheca does not collect: your name, email address, or phone number; account credentials; IP addresses associated with content; device identifiers or advertising IDs; location data; or browsing history.
3. Information We Do Collect
3.1 User-Submitted Content. When you submit a Drop, we store the text temporarily for up to 24 hours, after which it is permanently deleted. If your Drop accumulates sufficient Echoes, a brief summary may be permanently preserved as a Ghost Trace. Ghost Traces contain no author information.
3.2 Echo Interactions. When you Echo a post, we increment a counter. We use browser localStorage to prevent duplicate Echoes — this data is stored locally on your device and never transmitted to our servers.
3.3 Server Logs. Our web server may generate standard access logs including IP addresses and timestamps. These are used solely for security monitoring and are retained for no more than 30 days.
3.4 Analytics. We may collect aggregate, non-identifiable usage statistics such as total post volume and Echo counts. This data does not identify individual users.
4. Cookies and Local Storage
Letheca does not use tracking cookies or advertising cookies. We use browser localStorage solely to store a local Echo token and your age confirmation. This data never leaves your device.
5. How We Use Information
The limited information we collect is used exclusively to operate and display the Service, enforce our Terms of Service, and monitor security and performance.
6. How We Share Information
We do not sell, rent, or trade user information. We may share information with infrastructure providers who assist in operating the Service, in response to legal requirements, or to protect the rights and safety of our users and the public.
7. Data Retention
- Drops: Maximum 24 hours, then permanently deleted
- Ghost Traces: Retained indefinitely (no author information)
- Server Logs: Maximum 7 days
- Echo Tokens: Stored in your browser only, never transmitted
8. Data Security
We implement industry-standard security measures including encryption in transit (TLS/HTTPS) and access controls. No method of electronic storage is 100% secure, and we cannot guarantee absolute security.
9. Age Requirement
Letheca requires all users to be 18 years of age or older. Users must confirm this via a clickwrap agreement on first access. Because we require users to be 18 or older, COPPA does not apply to the Service.
10. GDPR (European Users)
Because Letheca does not collect personally identifiable information, we are unable to fulfill data subject requests that require identifying a specific individual. Contact contact@letheca.app for inquiries.
11. CCPA (California Residents)
Letheca does not sell personal information. Because we do not collect personally identifiable information, most CCPA rights are inapplicable by design. Contact contact@letheca.app for inquiries.
12. Third-Party Links
The Service may contain links to third-party websites. We are not responsible for the privacy practices of those third parties.
13. Changes to This Policy
We may update this Privacy Policy from time to time. Your continued use of the Service constitutes acceptance of the revised policy.
14. Contact Us
If you have questions about this Privacy Policy, contact us at:
Edge Case Software, LLC
Email: contact@letheca.app