Best Screen Recording Apps for Promo Video?

I’m looking for a way to create promo videos for my apps. I think a screen recorder would be optimal but I am having a hard time finding one that works. Any suggestions? How do you create promo videos for your apps? How do the big devs do it?

Big developers use professional services to create promo videos.
I have spoken to 2 guys with huge traffic in this forum.

you can make professional videos by yourself as well. but right screen recorder and graphics tools are required.

i forget the name of best screen recorder. if i am not wrong try googling with “bb screen recorder”

best of luck