Verizon's Edge, introduced in August, is similar to AT&T's Next, except costs are spread over four additional months. So that iPhone 5s costs about $27 a month for 24 months.
At first, customers had to wait six months for an upgrade. Verizon later changed that to 30 days. The catch is that customers must first pay for at least half the device before trading it in, meaning extra installment payments to reach that threshold.
This month, Verizon began offering discounts for Edge participants. Customers on data plans of up to 8 gigabytes get $10 a month off, while those on higher plans get $20. Those who buy phones elsewhere or whose contracts have run out aren't eligible for the discounts.
In changing the pricing, Verizon also increased the data allotment for some customers, while creating two lower-priced plans with less data. It began offering free texting to phone users worldwide, but that doesn't apply when the customer is traveling outside the U.S.
— Sprint Corp.
Sprint was the last of the four national carriers to introduce an installment plan with frequent upgrades. Its One Up plan started in September.
By January, that plan was gone, as Sprint focused on a friends-and-family plan called Framily. It lets friends and relatives save money by pooling their accounts, while keeping individual billing and data allotments.
Just a week later, though, Sprint replaced One Up with Easy Pay. The difference is that Easy Pay customers have to pay all remaining installments before an upgrade. With One Up and those offered by rivals, full payment isn't required, but the old device gets turned in.