Encourages return visits every day and punishes you for missing a day.
"Yeah, it does give you the opportunity to make up for missed ones, but you she to watch an ad and can only do that two times a day"
"You get daily rewards for in-game currency. If you don’t sign in for a week, you lose all of your rewards."
"Free daily gifts that merge into larger gifts - gives you more gold and gems. Bingo events play over the weekend that encourage more playtime/spensimg money for energy and rewards"