With Viva, multiple users can be registred to the same home.

Though, it is not possible to share the same app account. Each user needs his own account to log in the app. 

The admin user needs to add any other user as a family member in the app to give them access. Here are the steps to do that:

- Open the smartphone app and log in with the admin user account
- Open the navigation drawer by clicking on the top left button
- Select Family 
Enter the password
- Then click on Add... 
- Fill out the form and the new registered user will receive a mail with access