Sprint launches BOGO deal on iPhone 7, but you can only lease the phones
The conditions of the deal/s may have changed since the initial publishing of this post.
Basically, you can buy an iPhone 7 and pay $27.09 per month, and receive a second iPhone 7 for free (after bill credits). Keep in mind though that at least one the two Apple smartphones must be activated on a new line.
Lease an iPhone 7 (32GB) for $27.09/mo. and get a second iPhone 7 (32 GB) $0/mo after $27.09/mo service credit. Reqs 18 month leases with 2 new lines of service or 1 new line and 1 upgrade. For well-qualified customers with 18-month lease on Unlimited Freedom plans. Early termination results in remaining balance due. Credit applied within 2 invoices.
As mentioned, you won't be purchasing the iPhone 7 devices, so you'll have to use the 18-month lease option made available by Sprint. Also, both phones must be on Unlimited Freedom plans, and you're allowed to switch to a newer iPhone after one year. Obviously, you'll have to return the iPhone 7 when you upgrade to a more modern smartphone.
Things that are NOT allowed: