We made the app after having friends and family members get ripped off by financial advisors. The purpose of the app is to teach others about low fee index fund investing. Thanks!
You want to do that on a large screen in a quiet room.
How does the app accomplish this goal?
This is not the idea you are looking for...
You have identified a well known area of interest... but you are not solving a problem. If a problem can't be solved with conversation with a trusted friend or relative then it's a slim chance an app and leaderboard are the right answer.
I would love to use it or learn about index fund investing but there is no web-app or android app :(.