If I buy off Groupon for a savings can I upgrade to the VIP pass for the $2 per ticket to take pictures and scavenger hunt app?

Yes you surely can! In fact they should recommend it when you get there. I didnt know about it until the nice lady at the front told me about it and trust me it's worth the $2! You get a digital version of all the pics you take when you're there. Definitely recommend the $2 upgrade.

Yes we bought the groupon then purchase the VIP at the counter