it's the same design, for Standard Pass you have 1 key icon and the $ or Euro amount I'm guessing Euro 4.50
it shows the date paid and till when it's good. Nothing is really different than just 2 keys icon for Pass Plus.
I think you mean something else. You mean perhaps the viki plus shows? You can also unlogged access Kocowa in the dashboard and it will tell you that it's pass plus and some are allowed to be viewed like 2 or 3 weeks later.