Yes — on Google Play
USPS Mobile® has a Google Play listing.
App Store
On Google Play
Is USPS Mobile® on Android?
About USPS Mobile®
Access popular USPS.com® tools on the go with the “USPS Mobile® app: calculate shipping prices (limitations apply), find a Post Office™, look up a ZIP Code™, schedule a next-day pickup, request USPS to hold your mail, access Informed Delivery® to track packages and digitally preview incoming mail, and more. …