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OptinMonster is a great popup plugin. It offers a wide range of features including exit-intent technology, A/B testing, and more.
Elegant Themes' Bloom is a well-liked option as well, renowned for its exquisite designs and flawless Divi theme integration.
Hustle is a versatile plugin that not only handles popups but also offers slide-ins, embeds, and social sharing buttons for comprehensive marketing.
Sumo provides a suite of tools including popups, welcome mats, and scroll boxes, all aimed at maximizing your website's conversions.
With Popup Builder you can easily create popups. It is a user-friendly tool that provides various popup triggers, customizable templates, and integration with popular email marketing services.