Amp Back in Stock | Preorder

We were looking for an app with a good user interface and a fair pricing structure that would allow potential customers to get notified when our out of stock items were back in stock...and this app was a perfect match. Within the first month, we had over 100 notifications sent and most turned into customers...so the value was clear. Also, customer service was great (we had a minor interface issue we thought might have been caused by the app due to our complicated subscription setup and they helped to confirm where the issue was).