Poptin - Create engaging and high converting website pop ups and contact forms in minutes. With Poptin, you get access to a feature-packed conversion rate optimization toolkit that converts more website visitors into email subscribers, leads, and customers.

Nudgify - Nudgify is a Social Proof App that includes FOMO, Urgency and Review Nudges. Adding Social Proof notifications to your site helps you build trust and increase conversions on Shopify, Wordpress or any other platform.

Magic Popup by Frontender - Convert visitors Into email list subscribers

NotificationX - Best social proof and FOMO marketing solution for WordPress to increase conversion rates.

Little Widgets - HTML, CSS Framework with beautifully designed website widgets, popups, and forms.

Persado - Persado is a SaaS-based marketing automation platform prowered by NLP.