@Wrosie, this app does not appear to be like that. I suppose if you try to set up two user names you might run into issues. But as long as you set up your user name and password on the app, and then you want to access extra surveys on the desktop through crowdtap.com, and use your APP user name and password, then there is no issue. The survey questions sometimes seem repetitive, especially about grocery shopping, but then you DO get your points, and they don't link you to anything else that I can tell. I've earned $145 in Amazon gift cards since April, so I'm happy! I just redeemed about $40 of it for a bluetooth speaker and a gizmo that converts your TV audio to become bluetooth so that it connects to the bluetooth speaker. So, I'm enjoying this app a whole lot!!