# KeyByKey.app

Startup, Worldwide.

> Daily piano game for practicing playing melodies by ear
>
> — in its own words, from keybykey.app

- Website: https://keybykey.app
- Listed since: 2025
- launched: 2025-12-29
- launch post: https://news.ycombinator.com/item?id=46416443
- hn score: 3
- domain created: 2025-12-29
- Last verified: 2025-12-29


## Sources

- Hacker News, "Show HN" — https://news.ycombinator.com/item?id=46416443, read 2025-12-29

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