Players have an in-game "Piggy Bank" which holds rewards earned in-game. It can only be accessed with real money.
Candy Crush offers additional, randomized bonuses to players who voluntarily watch advertisements.
Players can spin this wheel once per day for a random reward. Players who do not open the app every day miss the opportunity.
Players are incentivized to play every day to reach six stickers as quickly as possible.
Each level won builds a "streak," which increases rewards over time. Players are incentivized to use bonuses and in-game currency to avoid losing a level and dropping to the bottom.
Whenever players run out of chances, they may continue playing by waiting several minutes, watching an advertisement, spending real money to continue playing, or reach out to friends, encouraging them to open the app to help.
Candy Crush offers frequent sales, making purchases feel like a good deal. Note that all of the rewards offered expire 1-3 hours after purchase.
In addition to the "Booster Wheel," Players also receive a randomized reward every day from the "Daily Treat Machine." Randomness like this is very similar to gambling.
Each week, players compete with strangers for better prizes. This encourages them to try to play more and outspend the others.
By offering special deals and complicated combinations of prizes, the game abstracts the in-game currency and makes it harder to directly compare to real money.
Note the time limits below many of the items. For $80, you get unlimited lives, but only for 72 hours. If you want to take advantage of the deal, you should play as much as possible for those three days.
The in-game store offers purchases up to $100 at a time.