Most of the software is the same, so when you simulate, all the operating rules are exactly the same as the real software, but the accounts used in simulation and real-time are different, so one fund is virtual and the other is real. Moreover, the data of simulated account and real account are processed separately, so the security and stability of real account are more secure than simulated account. If there is software that separates reality from simulation, its function should be exactly the same, otherwise it will lose the meaning of simulation.