Zark is the challenge app that allows users to invite friends to play challenges on their favorite games. Winners get bragging rights and rewards. Zark allows gamers to issue Overwatch challenges, have Halo competitions, and even enjoy the occasional Fortnite challenge tournament. With Zark, you have access to your own private community in the gaming world. You set the rules, issue the challenges, determine the winners, and collect the rewards. Easily redeem credits in-app for digital gift cards and create more challenges for more rewards!