Marketing Toolkit by OptinMonster

Marketing Toolkit by OptinMonster is the No.1 marketing toolkit in WordPress with over 1 Million active installations. The popup comes with behavior-based personalization and page targeting where you can show specific popups based on certain pages, based on user's geolocation, based on user's past behavior, etc. These popup features make them highly effective in increasing subscribers, improving leads, and therefore generating sales. With the plugin, you could turn your renouncing viewers' into subscribers or customers.