iPhone App - Double Coupon Checker

[BethP]

I read about the Double Coupon Checker app on KCL and downloaded it today to my iPhone. It allows you to scan the coupon bar code with your phone and it tells you if it will double! This will be great for figuring out Mariano's trips, especially with the new GS1 bar codes. I can't speak to its accuracy at the register, but I scanned a bunch of my coupons with the app and the results were consistent with the old bar codes (5s double, 9s do not double) on coupons that had both codes. I scanned a bunch of catalinas that said Not Subject to Doubling, and several came back as will double. So I'll have to test those out in the store  Does anyone use this app?