The app is so stupid now that they don't have the Mix Challenge anymore. You also have to pay for birthday concept photos now which were supposed to be FREE before, now they're letting you pay for it. They also classified gems as "free" and "paid" and you can't buy anything with free gems anymore which people worked hard for. The challenges are super hard so they intentionally designed this game to let you fail and for you to pay real money. It's basically a pay to win game now, it's sad.