CrewWeb is a web browser that you use to access the company's CWA website from your iPhone or iPad, much like you access CWA using Internet Explorer from a lounge computer. CrewWeb is a web browser — CWA is a website; thus, they are not the same thing.
It's important to understand the difference between the CrewWeb app and the CWA website.
I make the CrewWeb app (the web browser). I have no control over CWA (the website), either its interface or how it works (or doesn't work).