A postpaid plan is a type of mobile phone service where customers pay for their usage at the end of each billing cycle. This means you can use your phone for calls, texts, and data without worrying about running out of credit. At the end of the month, you receive a bill that reflects your usage, and you pay that amount. These plans often come with various benefits, such as unlimited data or family sharing options. Many people choose postpaid plans because they offer more flexibility and convenience compared to prepaid plans, which require payment in advance.