Watch this Youtube to have an idea about what challenge app is all about. Challenge App is a blockchain App which is used to create and fulfill geo-specific and time sensitive tasks for crypto rewards. A player has to be in a place and time to unlock a challenge and receive an EOS blockchain reward. The App has a local crypto called CHL available on Newdex, Okex and CoinGecko. It also has a peggedasset on 
Watch my video and have fun!
Download The ChallengeDAC App for your mobile Here=)
Android:
https://play.google.com/store/apps/details?id=challengedac.com.challenge_dac_app&hl=en_US&fbclid=IwAR2JFSGfevOI84dn9ABypt0aV1M-tlWwW7k-J2laz79faPgvowsS3k1_URA
iOS:
https://apps.apple.com/us/app/challenge-fun/id1478759780
Trade CHL via 
https://newdex.io/trade/challengedac-chl-eos
Trade CHLP via
https://steem-engine.com/?p=market&t=CHLP
Follow ChallengeOS Official accounts:
Website: https://www.challengedapp.io
Telegram: https://t.me/Challenge_DAC
Instagram: https://www.instagram.com/challengedacdapp/
Subscribe to ChallengeDac YouTube: https://www.youtube.com/channel/UCnYWlP_UT6k5EIfuLSD3Spg
Challengedac
Discord: https://discord.gg/HHXFfV
Reddit account: https://www.reddit.com/r/ChallengeDac
Twitter: @ChallengeDac