You can obtain coins through several actions in the app. These include signing up, claiming a daily bonus, winning bets where you staked coins, betting with new people, watching advertisements, and purchasing coins.
How do I purchase coins?
At the top of the screen, click your coin balance. Then at the top of that screen click on ‘Get Coins’. This will take you to the shop where you can purchase more coins or take specific actions to earn more coins.