Cartwheel by Target is an app that makes saving money into a small game of sorts. There are hundreds of deals available but not all of them are available initially. Rather you tend to save more overall on the things you buy. Cartwheel also integrates Target's weekly flyer deals and throws in a few other features too like signing in with Google+ or Facebook (or just Target if you prefer).
Wheel And Deal
In Cartwheel by Target the 'cartwheel' mentioned in the name is how you get all of your deals. The deals available to you are contained in your cartwheel and you add more deals to your cartwheel through unlocking badges. To do that you might need to buy a specific item once or a certain number of items from a given category. Once you've done that you unlock new deals generally related to the item(s) you bought. It's a little cumbersome but it's fun and it lets Target offer more deals without giving everyone a ton of options.
Game On or Go Elsewhere
If you're fine with a little light playing Cartwheel by Target is a great way to enhance your Target shopping experience. If you'd rather just grab deals and go that can be harder. The app provides a few other features like barcode scanning items to see if there are deals on it or related items so it's overall worth considering.