【實用商業app】Wissle|最夯免費app-綠色工廠好玩App

Wissle™ is a private security network that provides residents with instant communication in times of need. It enables any member to send an alert via computer, cell phone, smartphone or other smart device to all neighborhood members, who receive the alert on similar devices via email, text message or text-to-voicemail message on cell phones and land lines.