Hi there @DanaP!
Great question and thanks for posting it to the Community! 

I’ve seen a good amount of users use Viralsweep for their Shopify integration but I would love to see if other community members have had success (or failures) with Viralsweep or other integrations!

While we wait to see if there are other user feedback, here are some resources for analyzing list growth tool data and strategy: 

• How to Increase Email Conversion Rates--> I would check out this guide to determine which conversion(s) you'd like to improve
• Understanding List Growth Tools in Klaviyo--> This guide explains all the list growth tools we offer and how to optimize them to build your audience

• How to Strengthen Your Sender Reputation--> As you're working on improving your open rates, I'd look over this document that outlines specific steps you can take to improve your deliverability

Have a good day!

Alex

@DanaP 

I am Suggesting you Privy. Privy offers a range of tools such as pop-ups, banners, and spin-to-win displays that can be easily integrated into your Shopify store. 

Another highly recommended tool is OptinMonster. It provides powerful features like exit-intent pop-ups, slide-in scroll boxes, and floating bars to engage visitors and convert them into subscribers.