If you've not downloaded the Walmart app then you are missing out on some amazing savings. If you follow the link above it will give you all sorts of info on the app and how to download it for various devices. What i want to talk to you about today, however, is the savings catcher portion of the app... The savings catcher compares everything you bought to multiple stores in your surrounding area. All you have to do is scan your receipt in, and the app does the rest. We've saved over $9 since March, not too shabby.