Moodle for mobile

I've gone through the "simple" set up procedure: enable moodle mobile. I've installed the Android and iPad apps. When I add a new user to the mobile app, the mobile app connects and displays the list of courses. If I click on a course and then select content, it redirects to the website's login screen which I would expect to see if I used Firefox, Safari, etc. I don't get why AFTER ALREADY AUTHENTICATING a user has to see a web login screen and do the whole thing over again. I think I'm missing something critical, but the mobile documentation is convoluted if you get beyond "just enable mobile services." Can anyone enlighten me as to what needs to be done so that a SECOND login is not required? Also, if I go ahead and put my userid/pw in the website screen which comes up, it basically takes me to the website. I have to then navigate as if I were simply using mobile Safari or Android's browser(s). I thought the purpose of mobile was to present a cleaner "mobile" interface. Again, if the first part of this question reveals that the site's mobile isn't set up properly, then there's a chance that the rest won't be working correctly either. I realize that could be the case. Hoping for some help. TIA.