The link you posted is a page on a Web site. The App Store is not a Web site. That should have been your first clue.
There are preview pages for App Store apps. They look like this. The page you posted did not look like this, and did not link to any pages that look like this. https://itunes.apple.com/us/app/evernote/id281796108?mt=8
I hope for your sake that you are being deliberately dense, because if it isn’t deliberate, that’s sad.
So it’s speculation.