Signum

The app provides very quick communication between tenants of the same house during emergencies, for example fires. The adress of the house is indicated during the registration. To notify others, click on the button "Raise the alarm", and all tenants will get a notification on their phones. It's nessesary that all tenants choose the correct address.
Share the app - the more the users, the more reliant is the system!
The addresses all across the world are supported.