I been using Deliveries for years. It's an excellent app. In addition to allowing you to manually open the app to track stuff, it will automatically update itself in the background from each source and send you Notifications of the updated status. That means you don't have to manually check every hour, it will notify you when the shipping status changes. For Apple products, you can enter the Apple Order number as soon as you know it to start the automatic update process. Of course, once you know the Tracking Number of the shipper you can also set up a record to track that separately. If you receive an email with a tracking number from any major shipper and copy that number to the clipboard, then open the Deliveries app, it will parse the Tracking Number to identify the shipper and offer to set up the tracking record for you.
For anyone who orders stuff regularly from the Internet (I order a lot of regular stuff from Amazon), once you create the tracking record in Deliveries, you can forget about it until Deliveries alerts you that it's on it's way. I find the app invaluable.