Want to save big bucks on your cell phone bill if you have a family plan? You can get the job done with just one simple switch.

T-Mobile is the only one of the Big 4 wireless providers that's actually adding subscribers right now. Their new "uncarrier" plans are no contract. But the real selling point is how much money they can save you.

What are the best family plans for cell phones?

How much cheaper are they than AT&T? A family that switches from a family plan on AT&T to a family plan on T-Mobile will save an average of $100 a month, according to The Wall Street Journal.

There are no contracts with T-Mobile, so if the experience is awful you're not handcuffed to them for 24 months.

Meanwhile, if that's not cheap enough for you, TextNow.com has a smartphone plan that is $18 and change a month for a moderate user. The most you can pay if you're a heavy data user is $39.

Finally, FreedomPop.com has rolled out a free basic smartphone plan. If you want to add on unlimited texting and calling, you'll pay $10 a month. Sign up for your invitation now and get in the queue.

Image of Clark Howard About the author: Clark Howard

Clark Howard is a consumer expert whose goal is to help you keep more of the money you make. His national radio show and website show you ways to put more money in your pocket, with advice you can trust. View More Articles

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