Every week resets like a season. The five best-performing portfolios sit at the top of the home screen — tap Copy to mirror one with real money, or skip the leaderboard and buy and sell on your own. Ten screens, three flows, built on the Robinhood patterns in the reference sheet.
The leaderboard is the front door. Rank, streak and weekly return do the work a betting line does.
Pick a dollar amount; Rally mirrors their weights into real orders and keeps mirroring their future trades.
The straight Robinhood buy path, with one addition: the detail page tells you which of the top five hold it.