Works. Basic. One obvious flaw. – AfterShip Package Tracker Review

Seems to work fine, at least with UPS in the USA. Notifications only provide the tracking number, which doesn't tell me what shipment the notification is about in any meaningful way. The app provides an opportunity to enter a descriptive label for the shipment, but then fails to use it in the notifications. App also provides no way to contact the dev directly.
Review by AlpacaLips on AfterShip Package Tracker.