If you want pizza, Slice says you have three options. The first option is to use an app from a big chain and order pizza that tastes like cardboard. The second option is to use a delivery app, but that option includes high fees and poor delivery service. The third option is to call and order, but you risk getting the order wrong. Slice says there is a fourth option now with its app. The company says you can order from the best pizzerias without they high fees associated with other apps.