Tada Pop up Spin Wheel Popups

I recommend using their classic wheel, it's the one that is converting the best on my site so far. What I like the most about this app is that it creates unique coupons for your visitors, that means that it automatically creates the coupon in the Shopify system, and it manages the expiry and applying the coupon for my customers. It works a lot better than I thought; my clients love it.