alt Hacker Newsokay found it, a bathroom diary app for those who have IBS. It was in a foot note at the very bottom.
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a34729t • yesterday at 6:27 PM
"in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying Beware of the Leopard"
Yeah it was also oddly hidden away.
> Based on an agentic market research campaign, we vibe coded an app called GutCheck, a bathroom diary for people with IBS. We chose this app for its minimal yet helpful functionality: an iOS app live on the App Store with the RevenueCat MCP and App Store Connect CLI. Saul has full write access to the codebase. We set up the App Store account permissions beforehand to ensure Saul wouldn’t get blocked by Apple human compliance checks. We sourced this idea from Reddit.