C-Prisoner (You start the game like this):
Access to courtyard, where you can buy plots of land to build a home.
Ability to mine for and sell iron, coal, stone and wood in mining areas.
Access to stores where you can sell items acquired in C-Block.
Ability to rent temporary lockers to quickly store your stuff while mining.
B-Prisoner (Cost: $15,000):
Ability to rent temporary cells in B-Block for a smaller fee than the purchase of a Courtyard plot.
Access to B-Block’s Spleef Arena, where you can earn even more money.
Access to the fishing area.
Ability to mine gold, lapis lazuli and endstone in new mining areas.
Access to stores where you can sell items acquired in B-Block.
Create your own stores to sell stuff to the other players.
A-Prisoner (Cost: $35,000):
Ability to rent larger cells than those found in B-Block.
Access to Nether.
Ability to mine redstone and diamond in new mining areas.
Access to a totally customized Parkour area.
Elite-Prisoner (Cost: $60,0000):
Access to the Elite Prisoner casino! Earn money with slot machines.
Access to colored wool mine.
Access to the Elite Prisoner mall, where you can find a lot of different items to be bought and sold.
Access to the Elite Observatory. See the freedom!!!
Freedom (Cost: $100,000):
You’re finally free! Leave the prison and build freely in the world!
Enjoy all the perks of previous ranks.
Form Factions outside of the prison to protect your territory, and fight other factions.
Come back and visit your friends in jail.