OneTracker - OneTracker – Package Tracker is an app by OneTracker Team that helps users track all their delivery vehicles and staff to increase the productivity of their delivery business.
island - a free and opensource alternative to parellel space
AfterShip - AfterShip is the shipment tracking API for ecommerce businesses and marketplaces.
App Cloner - Clone your Android apps so you can use multiple logins.
Track24 - Track24 app assists you in tracking the packages of more than 600 international courier and postal services from all around the globe.
Parallel Space - Parallel Space – Multiple accounts and Two-Face is free to use mobile app that helps you clone or run multiple accounts of the same app simultaneously, and use themes to style your unique space.