Mobile phone plans are agreements between customers and service providers that outline the terms for using mobile services. These plans typically include features such as voice calls, text messaging, and data usage. Customers can choose from various options, including prepaid plans, where they pay in advance, or postpaid plans, where they receive a bill at the end of the month. Different mobile phone plans cater to various needs, such as individual or family usage. Some plans may offer unlimited data, while others have data caps. Customers can also select plans based on their preferred network provider and coverage area.