Would get a 5 but ...

This app is great, but why have completely separate login credentials for the desktop browser site and the mobile app? Thats ridiculous!!! The website wants a username (email address will not work) and the app wants an email address (username does not even exist). What the hell is this about? Who did this?!?!

Then, if your email address exists in the mobile app you cant use it to register on the browser website. What?!?!

JollyJoseph about McDonald's, v5.4.1