Yes, you can switch the platform of your account, subject to the following conditions:
No Trades Placed:
The account has not placed any trades.
Evaluation Phase Switch:
If the account is in the evaluation phase of any program, it can be switched upon moving to the next phase, provided no trades have been placed in the new phase.
Return to Initial Balance:
The account has returned to the initial balance after a withdrawal request.
Note: 1-step Nitro and 1-step Nitro Pro Simulated Funded Accounts must be absolutely untraded to be eligible for a platform switch.
Also Note: Switching platforms is not allowed on 1-Step Nitro X Accounts.