Hello On is a free safety check application that allows guardians to monitor the guardian's activity status, recent location, falls and abnormal heart rate notifications, etc. using the guardian's smartphone and smartwatch (Wear OS).

* Hello On can only check the welfare of the protected person if there is agreement and consent to monitoring from both the protected person and the guardian.

* Guardians can select the data that guardians can monitor.
- Smartphone: Activity information, location information
- Smartwatch (Wear OS): Health (heart rate) information, event (fall, heart rate abnormality) information