Board Thread:Plants vs. Zombies 2: It's About Time/@comment-25832612-20150414133734/@comment-24275721-20150421131513

For us Android users, this "Quest" thing should be common.

Log in with your Google account and you'll get a button to view some quests. Complete them and you'll be rewarded with in-game currency (in PvZ2's case COINS as they won't give GEMS). A lot of games nowadays come with Quest support.