No - the members of your circle do not need to own an Arc or download the app. All communication from you to your KATANA Safety Circle is via text message or email. They do not need to app to be in your circle.
No - the members of your circle do not need to own an Arc or download the app. All communication from you to your KATANA Safety Circle is via text message or email. They do not need to app to be in your circle.