Got ads and you can track only one parcel for free. :/

Nailed it! The app is simple, easy to use, and has a beautiful interface. I wrote to the developer and got a response in just a few minutes. Very helpful. The premium version is priced just right. Its works seamlessly with my  Watch. My only suggestion by far is to implement better courier detection for the US.

Would not take any package ID that I put in. :(

That is great!