Sticky Reviews is a social proof CRO (conversion rate
optimization) tool. It allows you to automatically collect real
reviews from your customers and display them on your
website. It’s proven to increase the conversion rates of
your pages. It supports text, audio, and video reviews. It
also allows you to display exit pop ups and collect email
addresses when people are going to leave your page. I built
it to replace UseProof since they were charging
$197/month for their software and only showed
conversions and not actual reviews.