Understanding Convenient and Secured modes

I had some misunderstanding on how the convenient mode works. I first thought that it needs some sort of security on the App as well. So, what I have in mind was…User needs to do the graphical login before “passcode” (key) is automatically sent to the Rpi.

I was mistaken. The key to convenient is that the User should not need to do anything at all, other than just launching the App.
</div><div>The diagram below should explain it better:</div><div>

<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody><tr><td style="text-align: center;"></td></tr><tr><td class="tr-caption" style="text-align: center;">Convenient and Secured Mode</td></tr></tbody></table><div class="separator" style="clear: both; text-align: center;">
</div>Link for a better view : Link