I don't know how was determined the amount I received but according to their Telegram channel, you get from 50 to 500 CNNS when registering.
I haven't fully explored the app nor have I tried sharing some crypto news and the other ways (M2 bonus & weekly community rewards for partners) to earn from it yet, but I know CNNS (which either stands for Crypto Neo-value Neural System or CoinNess) is already listed on Gate.io, Hotbit, OEX, Bilaxy, EtherFlyer, Biki, and Bkex as an ERC20 token.
They have an Extra Rewards Campaign going on until June 3 so the tokens I'll get will be multiplied if you use my referral link until then: