Cookie Jam offers a Daily Calendar that allows you to earn rewards just for opening your game! For every new day you log in, your calendar will check a day off. You'll be rewarded a grand reward prize at the end of the Sweet Reward week if you've logged in everyday.

 

This feature allows you to spin a wheel to get a free reward once a day. There is also an option to buy another spin that costs 15 in-game coins.