Proof might be a bit more popular than WisePops. We know about 1 link to it since March 2021 and only 1 link to WisePops. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Depends what you’re looking for, but we’ve used https://wisepops.com successfully on a number of sites. Good flexibility, plus, easy integration; don’t need a developer involved to get it up and running, and can do some powerful campaigns. Source: about 1 year ago
I've used https://useproof.com/ before, and it worked really well, and increased conversions about 8%. Source: over 2 years ago
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