The free trial allows one to test drive the TWS, IBKR Mobile, and IBKR Desktop trading platforms in a simulated environment prior to making any commitment to open an IBKR account. The functionality of the trading platform is the same as the production version and offers access to the full range of products and trading tools using delayed prices for exchange traded instruments and real-time prices for OTC spot forex and metals. Trades performance is tracked with simulated funds using actual commission and interest rates and margin requirements.
You can convert your free trial account into a live IBKR account with your same username and password by completing the account application and funding your live account.