Simple Mobile is a prepaid phone carrier that gives you the freedom to use whatever phone that you wish – no hassle, no fuss. In addition to the independence that you feel from using any phone that you like, they also have impressive Android and Windows devices that you can purchase directly if you’d like something new. Their plans include unlimited talk, text, and data at one of the cheapest rates available – only $40 for unlimited usage. No contract required. 4G compatible.