Very good app—syncing is it’s Achilles heel – TrackChecker - Package Tracker Review

This is a great app with the most carriers tracked I’ve found. I really like it, and it competes with a paid app I have. But it’s integration across devices is where it lags. Nothing happens automatically. If it integrated with iCloud and was seamless across devices, I’d probably pay for this and abandon my other one, which has fewer carriers but seamless integration.
Review by Ram99205 on TrackChecker - Package Tracker.