I signed up for Unreal on the first day and, at that time, porting was not yet available. Once porting was enabled I decided to wait, a few weeks, before initiating mine.
TPO does not provide port-out information, online, so you would normally have to call them to get your port-out PIN.
The way around this, however, is to set a new PIN, from your account page. By doing that, no phone call is required because you'll already know the PIN. 
I logged into my account, on Unreal's website, clicked on "Device", and then "transfer phone number". I entered the requisite information, used my phone number for the account number, and provided the PIN that I had just created at TPO.
The port went through, without a hitch, in about 20 minutes.
When I signed up, for Unreal, I was only charged $10-- including tax-- and I wondered whether or not that would continue to be the case. I'm happy to say that, when my month rolled, I was charged a flat $10, again. That amount is also shown as my "recurring monthly charge".
So far, I can't believe that Unreal Mobile is even related to FreedomPop, because Unreal appears to be a smooth running, low stress company to do business with.
FreedomPop, on the other hand, constantly looks for ways to piss off their customers (throttled Sprint data, eliminating shared and friends data benefits, deactivating accounts-- every month-- "for my protection", backhanded efforts to charge top-up and overages, etc.).
If you're coming up on the end of your free Sprint year you should strongly consider moving your phone to Unreal. I have absolutely zero complaints, so far.
TPO was also a great company and I hate to see them go. I hope there's room at the bottom end of the market for Unreal, Tello and Twigby, because I think they're all excellent companies who provide rock-bottom prices.