Ability to generate viral referral growth. Has helped me increase my lists by 50-100% uplift in signups & referrals for campaigns. I've launched a $2.5m campaign in 30 days because of it. I've tried other viral tools as well, and found this to be the best. It treats viral shares like a game.

The system makes it incredibly easy for gaining traction and momentum for an upcoming product launch. We use this for every new campaign we bring to market

We have tried many viral growth tools and I have to admit that Queue has the most robust features. Our most recent Growth Marketing Conference Contest (more info below) received 50%+ viral lift after just a few days of promotion