No, no one needs to download anything for the event. Business Hangouts is completely browser-based.
Business Hangouts does recommend a modern web browser such as Google Chrome, Firefox, Microsoft Edge, or Safari.
We also recommend a secure, reliable connection - especially for event presenters - so that they can be properly broadcasted during the event.
If you are connecting from behind a firewall, you might want to read this article: How does Business Hangouts work with Corporate Firewalls?
As always, let us know if you have any questions, comments, or suggestions by sending us an email to firstname.lastname@example.org or clicking on the 'Submit a Request' button along the top.
Thank you for choosing Business Hangouts!