Doorstep is a free universal package tracking app for Windows Phone 8.1 and Windows 8.1. Doorstep has support for eight carriers (UPS, FedEx, USPS, DHL Express, Royal Mail, Canada Post, LaserShip, and UPS Mail Innovations) with plans for more in the future. Current features: - Free unlimited tracking - No advertisements - Push notifications, live tiles, and badge notifications - Auto-detection of carrier - Automatic syncing with the Windows 8 companion app (coming soon!) - Fixed some bugs which caused errors when navigating between pages - Corrected live tiles so it no longer shows the activity date if it's incorrect - Improved FedEx detection - Improved LaserShip detection - Fixed bug with manual carrier override - Fixed rare bug which would cause the app to crash when navigating to the app via push notifications