Can I use a purchased ThemeForest theme with a Regular License on different sites?

Question

themeforest

Good afternoon! I am a young developer. I want to buy a paid theme on ThemeForest with a Regular License. As far as I know, when buying, they give an activation key. Is it possible to use this theme on different sites that I will create for clients? If so, do you need to enter the key each time?

Answer 1

Everything is well detailed right on the site, do not be lazy to read.
https://themeforest.net/licenses/standard Note to freelancers and creative agencies:
You may charge your client for your services to create an end product, even under the Regular License. But you can't use one of our Standard Licenses on multiple clients or jobs.