Quello is built on top of Hive and you can earn Hive for posting questions and answers on Quello. You may see a few differences in how we rank posts, but each vote works in the same ways as on any other Hive application and a part of the reward pool is designated to you based on the voter's stake.
Currently, there isn't any way to claim rewards on Quello, however something we'll be adding in the future. You can claim any rewards you earn on any Hive application that offers this functionality though.