Expo Mobile typically offers a variety of service plans, and whether a contract is required can depend on the specific plan you choose. Many prepaid plans are available that do not require a long-term commitment, allowing users to pay for services on a month-to-month basis without being locked into a contract. However, postpaid plans may involve a contract, which can outline the terms of service, duration, and any potential fees for early termination. Customers should review the details of each plan carefully before making a decision. For the most accurate and up-to-date information regarding contracts and service plans, it is advisable to refer to the current web page or the official resources provided by Expo Mobile.