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Klaviyo For Wordpress is leading in Top 1M Sites and The Entire Web.
2
SendSay is leading in Top 10K Sites and Top 100K Sites.
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Klaviyo For Wordpress has better usage coverage in more websites categories. Including Lifestyle, Health, Food & Drink, Sports and 14 other categories.
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SendSay is leading in Computers Electronics & Technology, Finance, Science & Education, Law & Government and 2 other categories.
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Klaviyo For Wordpress is leading in most countries, including United States, United Kingdom, Australia, Canada and 117 other countries.
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SendSay is leading in Russia, Kazakhstan, Belarus, Montenegro and 2 other countries.