A Japanese-developed personal safety confirmation app sees exponential growth in China. The app, designed to facilitate quick and efficient cross-checking of individuals' safety, particularly useful in emergency situations, has struck a chord with the Chinese smartphone users. The specific circumstances leading to this sudden surge in popularity are yet to be fully explored, but it underlines the growing importance of digital safety tools in an increasingly interconnected world.

In Japan, the use of safety confirmation apps has been widely accepted, especially following the 2011 Great East Japan Earthquake. Given the country's susceptibility to natural disasters, Japanese citizens generally appreciate tech solutions that address these concerns. In this regard, ensuring the well-being of family and friends during emergencies is a prime social value.

Such apps are gaining popularity across the world, including the US and the EU. However, with the notable difference in how privacy is handled, user behavior, attitude towards data sharing, and frequency of emergencies, adoption rates vary across regions. Digital safety tools are generally welcomed but the nuances of usage and reception largely depend on cultural and social norms.