You can expect the following costs during the evaluation process and once you reach a funded account:

During the evaluation process

• The monthly subscription fee for your evaluation account (recurring every 30 calendar days).

• Any resets you choose to purchase during the evaluation.

With a funded account

There are no recurring costs.
However, starting from your first full calendar month, and every month thereafter, you must place at least 5 trades on 5 separate trading days to avoid an inactivity fee.