T-Mobile on Thursday morning announced some big changes to its Jump program. As you might recall, the Uncarrier helped reshape the wireless landscape in the United States by separating the cost of smartphones from monthly service plans. With this new model, wireless subscribers no longer had to continue paying for phones each month even after their full value was recouped by their wireless carriers.

Now, T-Mobile is changing things up again.

T-Mobile’s new program is called “Jump On Demand,” and it removes all lump payments from the process of buying a smartphone as long as you continue to upgrade your handset at least once every 18 months. Instead of having to pay a large sum of money up front and then smaller payments each month along with a monthly Jump fee, the new program let’s you walk out the door with any smartphone for $0. Then, your phone payments will be spread out over the course of your contract.

Another great aspect of the new program is that subscribers can now upgrade to a new phone up to three times each year, and each time they’ll pay no money out of pocket. Existing phones will have to be traded in since this is a leasing program, and they’ll have to be in good working order.

T-Mobile highlighted the iPhone 6 as an example of what users can expect to pay. After you trade in your current phone, you’ll pay just $15 a month for a new iPhone 6.

Here’s a video where T-Mobile CEO John Legere explains Jump On Demand (NSFW for language):

Jump On Demand goes live this Sunday, June 28th, and it will exist alongside the existing Jump program.

Here’s the full press release:

T-Mobile Unveils All-New ‘JUMP! On Demand’ – a Whole New Way to Get a Phone Whenever You Want

T-Mobile kicks off ‘Un-carrier Amped’ — cranking up the volume on its revolutionary Un-carrier moves – by unveiling new ‘JUMP! On Demand’ phone payment plan

Un-carrier introduces the industry’s lowest monthly cost for iPhone 6 – at just $15 a month with trade-in

Bellevue, Washington — June 25, 2015 —Two years ago, T-Mobile [NYSE: TMUS] promised to take on a wireless industry that’d grown too fat to give a damn about its customers. Since then, the Un-carrier™ has eliminated the worst of the carrier abuses with an aggressive drumbeat of industry-rocking moves—and Americans have responded by making T-Mobile America’s fastest growing wireless company. But the company isn’t stopping there. T-Mobile is rolling out a series of epic updates to some of its wildly popular Un-carrier moves this summer and calling it ‘Un-carrier Amped!’ So today, the company kicked things off in a big way by amping up Un-carrier 2.0, its groundbreaking JUMP!® program, and introducing the industry’s lowest monthly cost to get an iPhone 6 when you trade-in your smartphone.

With T-Mobile’s new JUMP! On Demand™, one low monthly phone payment covers the cost of a new smartphone and gives you the freedom to swap it for a new one absolutely anytime you like … at no extra cost. Which means you don’t pay a penny to walk out the door with your new smartphone today–not even sales tax, with qualifying credit. No fees to upgrade whenever you want, no waiting and no worries about paying off your old phone when you upgrade.

“While the carriers are breaking every promise they’ve ever made with their knock-off upgrade programs, we’re racing full speed ahead, making one of our most popular moves even better,” said John Legere, president and CEO of T-Mobile. “JUMP! On Demand is the best way to get a new smartphone whenever you want. Zero out the door. Zero at upgrade. Zero fees. Zero wait. Zero BS.”

Hear more about JUMP! On Demand from Legere in his latest video blog.

Get a New Smartphone When You Want
Nearly half of Americans say they wish their carrier would let them upgrade their smartphone more often. So they’re counting the days until they can get that next new smartphone. With Jump! On Demand, you can get a new smartphone whenever you want at no extra cost.

Here’s how JUMP! On Demand works: Get a new smartphone for zero out of pocket with qualifying credit, and zero sales tax due today, followed by one low monthly payment that includes the cost of that new smartphone and, for free, the ultimate freedom to upgrade whenever you want. When you want a new smartphone, just swap your old phone for a new one. That’s it.

Customers with JUMP! On Demand can upgrade anytime − tomorrow, next week or next month − up to three times a year. Simply bring in the last phone you got with JUMP! On Demand for a quick three-point check-up to ensure it’s in good working order and swap it out for a new smartphone. Which means you could get six brand new phones during the time it’d take to get one upgrade at Verizon.

When you get a smartphone with JUMP! On Demand, your monthly payment is about the same as it would be with regular financing, and there’s no extra $10 monthly program fee. T-Mobile’s most popular smartphones are available with JUMP! On Demand. See the full list of available smartphones at http://www.t-mobile.com/jumpondemand in the FAQs.

Existing JUMP! customers can get a new smartphone with JUMP! On Demand the next time they upgrade, and won’t have to pay that extra $10 per month because the ability to upgrade whenever you want is now included in your monthly phone payment. And, if you still want device insurance (Premium Handset Protection), it only costs $8 per month.

Making It Easier, Not Harder, to Get the Phone You Want … When You Want It
Nearly two years ago, T-Mobile rocked the wireless industry with JUMP! so Americans could upgrade when they want, not when they’re told. JUMP! busted down the barriers to upgrading, and it was a huge hit. Over 10 million people signed on and made the most of JUMP!, upgrading their phones 30% faster than everyone else—every 14 months compared to the industry-average of nearly 20 months.

JUMP! was so disruptive, the carriers were forced to roll out their own knock-off “early upgrade” programs. But they’ve been changing their fine print ever since. Today, carrier customers are forced to wait even longer and pay more to get the phone they want. Verizon Edge customers originally had to pay off 50% of their phone before they could upgrade. Then Verizon upped the payout to 75%. Now, they make you pay off 100% of your phone before you can upgrade—which can take 24 months.

“Verizon’s quietly turned their ‘early upgrade’ program back into a two-year contract – as if nobody’ll notice. And AT&T isn’t much better. These guys just don’t get it,” added Legere. “Customers want more flexibility and freedom not less. So, while they make you wait longer and pay more, we’re changing the game again with JUMP! On Demand.”

Lowest Monthly Cost for iPhone 6
Now, for a limited time, you can get iPhone 6 with 16GB at the industry’s lowest monthly cost of $15 a month with JUMP! On Demand when you trade-in your current smartphone. That’s an unbeatable price the competition just can’t touch. And with JUMP! On Demand, you can easily upgrade to the latest iPhone at any time.

With Jump! On Demand, you make payments on your phone for 18 months. After 18 months, you can simply turn in your phone with nothing more to pay, or upgrade to your next new phone and start a new plan, or make a final payment and keep your phone. If you keep your phone and make the final payment, the total of your payments will equal the retail price of the phone. In addition, customers can pay off their JUMP! On Demand plan at any time by paying the remaining payments in advance, and keep their phone without penalty.

JUMP! On Demand is available in participating T-Mobile stores nationwide starting June 28th. For more information, visit http://www.t-mobile.com/jumpondemand. And follow T-Mobile CEO John Legere on Twitter (www.twitter.com/JohnLegere) to see how he’s planning to surprise his followers and celebrate the launch of JUMP! On Demand with them.

Post updated to clarify lease terms.