"be going to" and present continuous (future meaning)

Hi sir/madam, I have several questions about future forms.

  1. Is “be going to” frequently used in US and UK?
  2. What are the differences between “be going to” and present continuous (future meaning)?

Thanks already.

“Be going to” is frequently used in the U.S., and although I believe it is true also in U.K., I will let our friends from the other side of the pond answer that.

There is no significant difference between the two where they are employed correctly for the future, but there are instances when the latter does not work. Many exceptions are stative verbs.

I am going to seem nicer.
*I am seeming nicer.

I’m happy to confirm that ‘be going to’ is in common usage in the UK.