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China’s Viral ‘Are You Dead?’ App Rebrands as Demumu After Download Surge

The move follows a download surge for a simple check‑in tool built for people living alone.

Overview

  • Moonscape Technologies said it will adopt the Demumu brand in China, replacing the Si le me/“Are You Dead?” name.
  • The paid iOS app has led Apple’s charts in China since Sunday and has entered rankings in the US, Singapore, Hong Kong, Spain, Australia and Germany.
  • Users tap a button to check in, and if there is no activity for 48 hours the app emails a preselected emergency contact.
  • The developers have signaled planned updates such as SMS notifications and in‑app messaging, with a focus on better accessibility for older users.
  • The app’s rise has intensified discussion of loneliness and solo living in China, as coverage notes three Zhengzhou founders built it on a small budget and are considering selling a 10% stake for one million yuan.