It's the same, but if you get a "Subscription" for $10 a month, you get a...
SHIP OF THE MONTH
This program gives Subscribers the chance to pilot a flyable ship every month, enjoying unlimited access until it is switched out for a different ship the following month. A great way to try out that ship you’ve had your eye on, before pledging for it.
I might try that program at a later date, but I will learn the basics of flying and doing the missions first.
Also, you can rent ships as well using the money you make in-game.