The app signs out automatically which is frustrating specially when you want to pay fast while in the store.
As someone also explained, the app is not optimized for iPhone 6 plus screen which is really not professional. A known company like Starbucks should have a better app.
The app also throws some error messages randomly and it asks us to try again later.
We shouldnt be using a separate app, we should be able to download the original Starbucks app and can add our Starbucks cards to that app. Making a new app for each country is really hindering and creating unnecessary complications.
EnGxBaDeR about Starbucks Kuwait, v1.1