How are challenges played? Updated August 21, 2019 23:37 Follow Challenges are played using our iOS or Android mobile app. You can find out more about this here. Related articles Can challenges be played on the computer? How do I play a challenge in the mobile app? What is a “challenge”? Starting a challenge How do I get reports with results of my challenges? How can we improve this article or the features described? 0 comments Please sign in to leave a comment.