Proof might be a bit more popular than WP Popup Maker. We know about 1 link to it since March 2021 and only 1 link to WP Popup Maker. 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.
Sounds horrid... But you can do it with a popup maker - https://wppopupmaker.com/ which lets you set a button to trigger the popup. Put the galleries in the popups. Source: over 1 year ago
I've used https://useproof.com/ before, and it worked really well, and increased conversions about 8%. Source: about 2 years ago
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