Is it mandatory to send scores to certain universities on test day?

This is going to be my first time sitting for GRE. Can you somebody please enlighten me about sending scores to unis? I have no clue about it. I mean, is it necessary to send scores to unis on that day? Or can I do it later for free?

No, but it’s a good idea, because

is also no.

Thank you. However, do you think is it a good idea NOT to do so, since it’s my first time sitting for GRE and I’m not that confident about getting a good score. What do you reckon?

Usually, we recommend sending - you can always send a better score later on.

Thank you