Your Collections.
Zero-Knowledge Privacy.
Track your beers, books, and more with military-grade privacy. We use pseudonym tokens and E2E encryption so nobody—not even us—can link your data to you.
Available Verticals
Beers
Track your beer collection and discover new brews
Books
Manage your reading list and get recommendations
How Zero-Knowledge Privacy Works
Pseudonym Tokens
We generate daily-rotating pseudonym tokens (PT) from your user ID. These are SHA-256 hashes that are mathematically impossible to reverse.
24-Hour Expiration
The PT-to-user mapping is stored in Redis with a 24-hour TTL. After that, it's gone forever. No backups, no logs.
E2E Encryption
All communication uses Matrix's Olm/Megolm protocols for end-to-end encryption. Your personal notes are encrypted client-side.
Privacy Guarantee
After 24 hours, we cannot link your collection data to you, even if compelled by law. The mathematical properties of SHA-256 and our ephemeral architecture make it cryptographically impossible.