There are so many ways to save big especially with smartphone apps. But what are the best ones you should arm yourself with when you head into the stores? Here are four apps that really will save you some cash.[br /][br /]First check out the amazon app. The reason why you need the [url HREF="Https://itunes.apple.com/us/app/amazon-app-shop-scan-compare/id297606951?mt=8" TARGET="" REL=""]Amazon app[/url] is so you can check out the competition.[br /][Ads /][br /]When you are in the store, you can scan bar codes of items you want to buy and see if that if Amazon has a better deal. Some stores will price match Amazon's prices, so you can decide to purchase in store for the same price.[br /][br /]This next one is very practical. It's called [url HREF="Https://www.giftster.com/news/home2/" TARGET="" REL=""]Giftster[/url]. The idea is that you will never buy an unwanted gift again.[br /]This app helps you create and share wish lists in a private family group. You can start a gift exchange group. You'll need to set it up, but once you do, use it for a lifetime.[br /][Ads /][br /]An all-time favorite is [url HREF="https://cartwheel.target.com/[br /]" TARGET="" REL=""]The Cartwheel by Target app[/url]. Before you step into the physical store, take five minutes to scan all the coupons that are being offered. You can save an additional 20 to 35 percent on items. Plus, you can stack coupons.[br /][br /][url HREF="https://play.google.com/store/apps/details?id=com.whaleshark.retailmenot&hl=en" TARGET="" REL=""]RetailMeNot[/url] has always been popular, especially for coupons, but what's really great when you are out shopping, you can turn on location services on your phone and have the app alerts you when you're near a shop with some discounts.