Can i switch my verizon iphone to simple mobile?

Ok so i bought a Iphone in the apple store but i activated it with verizon now i want to switch to simple mobile or any other carrier can i do that even if my iphone use to be with verizon.
i bought it at the apple store cash.

Simple mobile is a GSM plan that runs on the T-mobile network, and a Verizon Iphone would be CDMA, so that won't work. Straight Talk might work for you. You'd have to get the phone unlocked, either by Verizon or a 3rd party unlocking service.