Which coin in your opinion has identified User Interface (UI) as an issue and is taking steps towards mainstream adaption? I can think of Dash Evolution pay creating an API which helps users setup wallet using username and password (just as you do for any website). A marketplace is attached to it so we can buy things off the market. It has even Savings Account, Current Account and you can also setup an Autopay feature. I am not sure how far the team has reached. Will this increase acceptance?

Disclaimer : I am not pumping Dash here - I think the instant mining is a big scam.