사상 안심해효

This app is a safety-vulnerable class such as the elderly 65 years of age or older, the disabled, dementia patients, and the severely ill, single-person households, kindergarteners, elementary, middle and high school students, etc. It is a relief service app developed to prevent damage by sending texts or warnings (sound, vibration, etc.) to
It is operated by mobile phone without a separate server and does not contain personal information, so anyone can use it without risk of personal information leakage.
The app will not work if the phone is turned off. Always check and charge your phone's battery.