Pretty useless. Most places send you tracking anyway. Just another spyware tool. Don't bother . Also very glitchy and takes forever to load. Update... The app proves extra useless as The package showed up today and the app still listed it as being delivered tomorrow. Thankfully the company I purchased the item from an FedEx both sent me an email this morning stating the package was arriving today. This was important as I needed to be home to receive. It won't let you manually add other packages.