Yes, you're thinking Universal, which has 3 options.
If you stay onsite you just use your room key as a FP (actually Universal Express Pass (EP)) anytime.
You can buy an EP Plus for $20-37 depending on the time of year (more crowded, more $$$) and that is good for one use on every ride that offers Express, which is almost all of them.
They have free EPs distributed the way FPs are, except you choose from 2 different return windows, but they are limited, and the most popular rides run out VERY early.
Cheers.