Heartbeat – A simple public page for your real-world and online status
Updates status via email instead of an app, but lacks automatic presence detection.

Pinggy commits to a single gimmick — one-word 'pings' — and even exposes an API so bots or tiny clients can play along. The landing page is clean and approachable, but the product feels like a neat toy rather than a defensible social platform; without integrations (federation, strong discovery, or unique moderation) its appeal is limited to niche, novelty-first users.
Casual social users, microbloggers, minimalists, and hobbyist developers interested in simple status APIs
Updates status via email instead of an app, but lacks automatic presence detection.
Cute registry for Claude Code status bars, but it's just cosmetic customization.
Niche registry for terminal bling that solves a non-existent problem.
Two crosswords sharing one grid creates a clever constraint for puzzle solvers.
Nostalgic mixtape economy on Fediverse, but adoption hinges on finding the right audience.
Public status pages for AI agents when LangSmith is just for devs.