Unlimited Contacts Your Cerkl price is set for the length of your contract so don’t be afraid to engage. Unlimited Admins Cerkl brings your team together. We make it simple to collaborate. Unlimited Newsletters Cerkl’s A.I. automatically creates custom newsletters for each member of your audience. Tech Support Your Cerkl Account Manager will help you reach your engagement goals. Web Personalization Cerkl’s personalization plugin increases engagement and time on site. Email Campaigns Beyond personalized newsletters, you can also quickly send a message to all or part of your audience.