Overview
- The paid app surged to No. 1 in China in early 2026 after a rapid rise in downloads over recent weeks.
- Users must tap a button every two days to confirm they are alive, or the app notifies a designated emergency contact.
- Sold abroad as Demumu, it ranks among top paid apps internationally, including No. 6 in the US at $0.99, with a China price of about 8 yuan.
- The developer has acknowledged criticism of the name and is considering a change, while the founders discuss an elder-focused edition and a possible 10% equity sale.
- Coverage ties the app’s popularity to projections that China could have around 200 million one-person households by 2030.