Unsure how reliable this is

Ive had this app for close to a year now and trusted this app until this morning
Got a notice from UPS notifying me that I had a package scheduled for tomorrow, when I looked at Deliveries it says that its scheduled for next Friday and obviously the app does not show the updated tracking info even though it says updated a moment ago. I am left to belief that it does not give you real time updates

pjavas about Deliveries: a package tracker