As long as you register your account, you can check your grades in the personal center. But you can't enjoy some membership privileges without paying, such as viewing detailed analysis reports or performance forecasts. If you need these privileges, you can choose to pay to become a member. Please note that the above information is for reference only. Specific functions and costs vary from region to region or school. If you need accurate information, you can directly consult the seven-day school customer service or the relevant departments of the school.