Square has done it again. The mobile app that allows food truck to accept credit card payments, has just released an update that adds several new features. Started by Twitter co-founder Jack Dorsey in 2010, Square has seen steady growth and even recently announced that it does $11 million a day in mobile payments.

Food truck owners can now reward regular customers and it lets you define what makes a Card Case (Square’s companion wireless payment app) customer a regular. You then can add a discount on certain transactions, letting them know you appreciate their loyalty and repeat business.

Another big feature, one that food truck owners have been clamoring for, is the ability to use Square for cash transactions. Using your iPad you can wirelessly print receipts or open your cash drawer to make change. While the initial setup of this feature may look intimidating, Square walks you through connecting your drawer and receipt printer on their site.

Overall you get much more for your money with this multi-faceted update considering that the app and card reader are free. If you are just now hearing about Square, they change a flat 2.75 percent fee per swipe for all credit cards. To update, enter the App Store then at the bottom tap the update tab.