You can gift with your friends to get more free coins every day! In the lower left of the main menu of Jackpot Party is a present icon. There may be a red circle with a white number hovering over part of the present. If you see this, it means you have gifts waiting to be collected! Click on the present icon to both send gifts to your friends and collect your gifts! You can collect up to 15 gifts per day!
You can also increase your daily bonus boosts by inviting more friends to play. The more friends who play, the larger your daily bonus is!