ACF PRO includes extra fields & features to better develop websites.
https://www.advancedcustomfields.com/pro/
Widgets · WordPress Plugins
Get access to data on 15,150 websites that are Advanced Custom Fields Pro Customers. We know of 5,462 live websites using Advanced Custom Fields Pro and an additional 9,688 sites that used Advanced Custom Fields Pro historically and 1,942 websites in the United States.
Get a list of 15,150 websites using Advanced Custom Fields Pro which includes location information, hosting data, contact details, 5,462 currently live websites and an additional 3,838 domains that redirect to sites in this list. 9,688 sites that used this technology previously and 1,942 websites in the United States currently using Advanced Custom Fields Pro.