Just added an exit intent popup to a client's site, they started getting leads in the first day! Seeing some impressive conversion rates so far.
Proof - Website conversion rate optimization and visitor monitoring
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.
Fomo - Fomo turns your site into the online equivalent of a busy store
NotificationX - Best social proof and FOMO marketing solution for WordPress to increase conversion rates.
OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.
GetSiteControl - Website popup builder & email marketing suite for ecommerce