ACF PRO includes extra fields & features to better develop websites.
https://www.advancedcustomfields.com/pro/
Widgets · WordPress Plugins
Get access to data on 13,687 websites that are Advanced Custom Fields Pro Customers. We know of 3,802 live websites using Advanced Custom Fields Pro and an additional 9,885 sites that used Advanced Custom Fields Pro historically and 1,269 websites in the United States.
Get a list of 13,687 websites using Advanced Custom Fields Pro which includes location information, hosting data, contact details, 3,802 currently live websites and an additional 3,177 domains that redirect to sites in this list. 9,885 sites that used this technology previously and 1,269 websites in the United States currently using Advanced Custom Fields Pro.