Weekly Leaderboards is a competition and reward system added to the mobile version in July 2017. Players can compete against each other for prizes in up to four different leaderboards. Rankings in each leaderboard are determined by the number of Trophies a player has collected. Trophies can only be collected by winning and opening Mystery Potions. At the end of the week the top players can win either coins or DNA.The four leaderboards are the following: My League, Friends, Country and World.