Great but lacks something
It's a great app for keeping track of your trackable deliveries without having to open the browser and re-enter the details everytime, especially if you got multiple deliveries to keep track of. The only thing it lacks is the option to get notified by a push notification when a particular booking has changed it's status. Would be great to know that my iPhone has switched to 'Shipped' from 'Not Yet Shipped' for example, without having to reload the application manually.