Several developers in the community are competing to claim the bounty. The GUI that receives the widest spread adoption will receive the bounty, as decided by the community.
Anyone is welcome to join the competition by developing a GUI wallet that runs on the BarterDEX core engine.
We will start measuring activity within the next few months, to compare user adoption. After a few more months of gathering data on overall usage, we will distribute the bounty to the wallet that has the most user activity.