Storm Viewers are only able to view the contents of your Storm and not contribute. Only Storm Creators can invite viewers.
Viewers can:
Participate as observers in Storms.
See what is happening in the Storm in real-time.
Zoom in and out of the Storm.
See who created which idea and when.
Viewers will not be added to your team or your bill.
Viewers will still need to create a Stormboard account.
The Startup plan allows 5 Storm Viewers per Storm and the Business plan allows 10 per Storm.
Also see: