The Store is a place where you can purchase pearls, mermaids, trinkets, realms, decorations, and lounge areas. You can buy pearls and you can earn them by watching videos and completing offers. You can summon mermaids (limited edition) with coins and pearls. You can purchase trinkets with pearls to make your mermaids happier. You can buy realms with coins and pearls. You can get decorations with coins (shows you realm decor). And you can buy lounge areas where your mermaids can sit down and relax. Also, you can buy Mermaid World merchandise (t-shirts, mugs, phone cases, stickers, ect) by pressing the button at the bottom of the store screen.