The Princeton Review, the college admissions and advanced educational test preparation tutor and publisher faced the same challenges all online stores face. How do you build a base of loyal users, promote new products, encourage users to return and reduce the number of abandoned carts.

The Princeton Review selected OneSignal for web push notifications, they implemented in less than a week and started to see immediate results.  After a year of usage they found that visitors who opted-in to notifications purchased 4x (400%) higher than other users. You can learn more about their experience with OneSignal here.