Seven and a Half is a classic card game that is both easy to play and very enjoyable. The game consists of a banker and one or more players. Each player receives a card, and then they make their bet. The player to the left of the banker receives cards until they stand or their card value is greater than 7.5. The turn then passes to the left, and each player's cards, except one, are revealed.

After all players have had their turn, it's the banker's turn. The banker plays with all their cards revealed, and their turn ends when they stand or pass 7.5. If the banker passes, they lose and pay the players who have stood. If they stand, they win all those with a play of less or equal value and lose to those with a play of higher value. The banker pays an amount equal to the bet to the players who have won, except for those who have a play of 7.5, who receive twice the amount bet.

In the next round, the player to the left of the current banker becomes the new banker. Seven and a Half is a great game to play with friends and family, and the app is available for free on Android.