A free spin is essentially an offer that a casino gives to its players to spin the reels free of charge and have the opportunity to win real cash. The free spins may be given to both new and current customers, and it's one way to reward and encourage them to continue betting.
South Sudan is among the youngest countries in the world, having seceded from Sudan only in 2011. Currently gambling is not regulated due to the serious political instability, and it is not clear whether mobile casinos are legal. That being said, there is little to no access to internet, which impacts mobile gambling.