Which mobile app allows USPS customers to track packages using their smartphone camera?

The USPS mobile app is designed specifically for United States Postal Service customers, providing a variety of services including tracking packages seamlessly. One of its standout features is the ability to track packages using the smartphone's camera, enabling users to capture tracking barcodes directly from the packages and access tracking information instantly. This functionality enhances user convenience by streamlining the process of tracking parcels without needing to manually input tracking numbers.

Other applications, while they might assist in tracking or provide other postal services, do not offer this unique feature of utilizing the smartphone camera in the same way or are not specifically associated with USPS services.