While most wireless subscribers have a standard, single-line plan, family plans have been gaining in popularity over the past couple of years, and prepaid plans represent the fastest growing segment of the industry.

Overview of the Calling Plans*

Feature	Single Plan	Family Plan	Prepaid Plan
Number of Users	1	2-5	1
Number of Bills	1	1	0
Billing	Postpaid	Postpaid	Prepaid
Subsidized Phones	Yes	Yes	No
Free Mobile-to-Mobile	Some Plans	Yes	No
Contract	Usually 2 Years	Usually 2 Years	No
Credit Check	Yes	Yes	No
Shared Airtime	No	Yes	No

**Information in this table reflects general characteristics; there are exceptions.

Each rate plan type has its own unique quirks. To account for those, and to make it much simpler to choose among competing rate plans within each of the three categories, MyRatePlan has created a tool called CellCalcTM, that combines a rate plan filter with a sophisticated bill optimizer (called TruBillTM). There is a separate version of CellCalc for each type of plan — single, family, and prepaid.