What is Reddit's opinion of USPS MOBILE®?

From 3.5 billion Reddit comments

I'm not sure if there is a specific app for that, but the USPS Mobile app (android) allows you to access informed delivery. You can also set it up so that you get updates when a package is out for delivery and a notification for whenever it is delivered. Love this service.

There actually is an app for that. You can print your own postal stamps from home. See https://play.google.com/store/apps/details?id=com.usps or go to https://www.stamps.com/

For USPS shipments try this (if you have an android device):

https://play.google.com/store/apps/details?id=com.usps&hl=en

Each tracking entry can be assigned a nickname.

iPhone

Android