Works great so far! I like how the notification tab shakes every few seconds. Draws the eye to sign up!!

See it in action at - Kiigns.com

Very easy to use and works just the way as promised! I asked the customer service for a small modification to the app and they made it happen in no time, superior customer service, thank you!

Simple, fast, elegant, just one of the best Shopify apps you can find for products rebates and back to stock alerts and custom email campaigns. Totally recommended.