Does anyone have any experience with the CheckPoints app (barcode scanner; earn points for scanning items that you can redeem for gift cards etc) on an Android phone? It seems like the app should have far more functionality than it does on the S4; you're supposed to be able to scan any item in a given store, but I only get a list of 5 or 6 (the 'navigation' tabs that are supposed to be on the screen aren't).