In this article, you will know where to remove the Powered by from your lead page and share page hosted by Upviral.
NOTE: THIS IS ONLY AVAILABLE FOR THE PRO PLAN. BASIC PLAN DOESN'T HAVE THIS OPTION.
On your campaign under Setup section you will see the 'Advanced Settings' option go to that section.
There's a section that says 'Show "Powered By" ' beside it there is an option to turn it off. Please click on that option to turn off 'Powered by'