Observed arrival · 2026-09-26
Slowsea’s drifting letters
Slowsea is a forthcoming bilingual app where one-line letters drift anonymously through a shared sea, alongside real radio stations.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People seeking unhurried, anonymous correspondence
- Worth noticing
- A letter is paired with its writer’s distance, transit time, local weather, and the radio station they were hearing.
Field notes
The homepage describes letters as single-line messages that carry context from their sender: distance, how long the message has traveled, local weather, and the radio station playing there. In the proposed app, a reply may not return to its intended recipient, and users can instead leave the radio on without writing. The page also offers a privacy policy and an account-deletion route that does not require installing the app.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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