# Stratum

Startup, Worldwide.

> Rate books, films, and music to find users with similar taste
>
> — in its own words, from joinstratum.app

- Website: https://www.joinstratum.app/
- Listed since: 2026
- launched: 2026-08-15
- launch post: https://news.ycombinator.com/item?id=49314936
- hn score: 2
- domain created: 2026-07-15
- Last verified: 2026-08-15


## Sources

- Hacker News, "Show HN" — https://news.ycombinator.com/item?id=49314936, read 2026-08-15

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startup.is · https://startup.is/registry/stratum-app · open data: /api/v1, /llms.txt