on landing page (not intuitive where the "login and signup here" link at the top of the page will take you (perhaps just something that says "go back" would be more intuitive). Also not clear as to what "vendor" and "customer" is on the home page....i.e. not sure what the app is for on the landing page (perhaps some short explanatory text would be helpful as i wouldn't sign up to an app if i didn't know what the app is for/what service it is providing)