Hi-Lo, Bust Out and Lucky Queens — are the side bet tables in Blackjack.
They allow you to make additional, i.e. “side bets” on different outcomes to win even more chips with each hand.
You can find side bets in the Lobby. Tap on the preferable mode and choose the suitable bet size.
Additional info is also available at the table by tapping the “?” button in the upper right corner of the screen or on the icon with two cards.