I want my $$ back
Do not buy it!
Response from developer
Update (2/15): 1.2.3 is now available. Please let me know if the update fixed your issue.

Archived App
This is an archived listing of the app previously available on the App Store.Effortlessly monitor all your incoming shipments in one place. Receive instant push notifications for any changes in delivery status, ensuring you're always informed about your packages.
1.5.1
March 1, 2020
This version fixes issues with push notifications on iOS 13 and improved the reliability of the barcode scanner.
Update (2/15): 1.2.3 is now available. Please let me know if the update fixed your issue.
Packtrack is a utility app designed to help you keep track of all your deliveries. It provides instant push notifications for any changes in the delivery status of your tracked parcels.
Packtrack is a paid application, priced at $4.99. This one-time purchase grants you access to its parcel tracking features.
Packtrack is available for iPhone, iPad, and iPod devices, as well as the Apple Watch, allowing you to track parcels across multiple Apple platforms.
The latest version of Packtrack is 1.5.1, which was last updated on March 1, 2020. While updates have not been frequent recently, the app is stable for its core functionality.
Packtrack supports a wide range of carriers including Apple Online Store, Australia Post, Canada Post, DHL Express, FedEx, UPS, USPS, and many more. New carriers are frequently added.
Packtrack has an age rating of 4+, making it suitable for a broad audience of users.
The provided data does not specify if Packtrack contains advertisements. However, as a paid app, it is common for such applications to be ad-free.
Packtrack has received an excellent rating of 5.0 stars from 2 ratings, indicating a very positive user sentiment for the app's functionality and reliability.