Clubhouse: Inside Wall Street's Newest Hot Spot

Clubhouse, the drop-in audio chat app, topped 8 million downloads in the iOS app store.  There was a dramatic boost in downloads after Elon Musk, Tesla  (TSLA) - Get Report CEO and founder, invited Russia's Vladimir Putin to chat.

Related: Tesla CEO Elon Musk's New Favorite Social Media: Clubhouse

Users can drop in on conversations with Wall Street's elite. Here are just a few CEOs joining the Clubhouse conversation:

• Tesla CEO Elon Musk
• Robinhood CEO Vlad Tenev
• Facebook CEO Mark Zuckerberg

The social media platform has some growing competition. Here are a few:

• House Party is designed for social hangouts and integrates with Snapchat
• Facebook  (FB) - Get Report CatchUp app allows group calls without being a Facebook member. 

Watch the video above to learn more about the invite-only Clubhouse and its competitors.